Footer

    Download on the App StoreGet it on Google Play

    About

    • About Us
    • Our Learning Services
    • Join Us
    • FAQ
    • Hot Tags

    Services

    • Pronunciation Challenge
    • Saved
    • Search Vocabulary
    • Blog

    Channels

    Levels

    • A1
    • A2
    • B1
    • B2
    • C1
    • C2

    Privacy˙Terms˙
    ©2026 VoiceTube Corporation. All rights reserved

    proof of

    US

    ・

    UK

    A1
    phr.PhraseEvidence establishing the truth of a statement or fact.
    Do you have any proof of purchase?
    phr.PhraseSomething that demonstrates or confirms something.
    This experiment is proof of the theory's validity.
    phr.PhraseDocumentation or evidence verifying someone's identity.
    We need proof of identity before we can issue a passport.

    Video subtitles

    Genetic Engineering Will Change Everything Forever – CRISPR

    16:04Genetic Engineering Will Change Everything Forever – CRISPR
    • But the basic proof of concept for genetic engineering like this already exists today - the technology really is that powerful.

      But the basic proof of concept for genetic engineering like this already exists today - the technology really is that powerful.

    • basic proof of concept for genetic engineering like this already exists

      basic proof of concept for genetic engineering like this already exists

    B1

    Watch Jim Lehrer Moderate First Full Presidential Debate

    31:01Watch Jim Lehrer Moderate First Full Presidential Debate
    • And the proof of that is 23 million people out of work.

      And the proof of that is 23 million people out of work.

    • And the proof of that is 23 million people out of work. The proof of that is 1 out of

      And the proof of that is 23 million people out of work. The proof of that is 1 out of

    B1

    30 Truths I Know at 30 But Wish I Knew at 20

    08:2230 Truths I Know at 30 But Wish I Knew at 20
    • When you do things that are hard and you stretch your limits, you'll gather proof of your abilities and the fear of not being good enough will eventually fall away.

      When you do things that are hard and you stretch your limits, you'll gather proof of your abilities and the fear of not being good enough will eventually fall away.

    A2

    Why US gun laws get looser after mass shootings

    09:27Why US gun laws get looser after mass shootings
    • You can't get alcohol delivered without, um, showing proof of ID or something, but he ordered ammunition.

      You can't get alcohol delivered without, um, showing proof of ID or something, but he ordered ammunition.

    B1

    First Woman (And Fastest) To Travel To Every Country!

    05:27First Woman (And Fastest) To Travel To Every Country!
    • And she must have physical proof of being in all countries, including North Korea.

      And she must have physical proof of being in all countries, including North Korea.

    • She cannot just drive through a country and she must have physical proof of being in all countries, including North Korea.

      She cannot just drive through a country and she must have physical proof of being in all countries, including North Korea.

    A2

    You MUST DO THIS 30 Days into a New Job!

    08:57You MUST DO THIS 30 Days into a New Job!
    • No one was a micromanager, but I just always want to make sure I have some proof of, like, "Hey, this is what I've been working on." And so just start keeping a list, tracking, like, "This is what I've learned, this is what I've been working on, this is how I'm spending my time." It doesn't have to be ultra detailed.

      No one was a micromanager, but I just always want to make sure I have some proof of, like, "Hey, this is what I've been working on." And so just start keeping a list, tracking, like, "This is what I've learned, this is what I've been working on, this is how I'm spending my time." It doesn't have to be ultra detailed.

    • No one was a micromanager, but I just always wanna make sure I have some proof of like, hey, this is what I've been working on.

      No one was a micromanager, but I just always wanna make sure I have some proof of like, hey, this is what I've been working on.

    A2

    馬斯克最新預言:未來由機器人工作,人類享受生活!|經濟翻10倍 人人都是高收入|中英對照 聽力訓練

    08:03馬斯克最新預言:未來由機器人工作,人類享受生活!|經濟翻10倍 人人都是高收入|中英對照 聽力訓練
    • Absolutely. I just want to mention also something that may be worth considering is tunnels. I have this company called The Boring Company, which sounds kind of boring, but it literally bores tunnels. In order to solve traffic, you really need to go 3D with roads. By using tunnels, you can essentially create a wormhole, like a wolf tunnel from one part of a city to another, and alleviate traffic. We've actually already done this proof-of-concept in Vegas. There are working tunnels in Las Vegas that you can use. It feels like teleporting from one part of Vegas to another. I always say that my joke is that tunnels are underappreciated. It's a bit of a... Not always a hit, but...

      Absolutely. I just want to mention also something that may be worth considering is tunnels. I have this company called The Boring Company, which sounds kind of boring, but it literally bores tunnels. In order to solve traffic, you really need to go 3D with roads. By using tunnels, you can essentially create a wormhole, like a wolf tunnel from one part of a city to another, and alleviate traffic. We've actually already done this proof-of-concept in Vegas. There are working tunnels in Las Vegas that you can use. It feels like teleporting from one part of Vegas to another. I always say that my joke is that tunnels are underappreciated. It's a bit of a... Not always a hit, but...

    • And we've actually already done this proof of concept in Vegas.

      And we've actually already done this proof of concept in Vegas.

    B1

    Is Iran close to having nuclear weapons? | BBC News

    02:59Is Iran close to having nuclear weapons? | BBC News
    • But it found no proof of a systematic effort to move into a nuclear weapon.

      But it found no proof of a systematic effort to move into a nuclear weapon.

    • but it found no proof of a systematic effort to move into a nuclear weapon.

      but it found no proof of a systematic effort to move into a nuclear weapon.

    B1

    How to Build A Strong Mind | STOIC PHILOSOPHY

    08:04How to Build A Strong Mind | STOIC PHILOSOPHY
    • Nothing to my way of thinking is a better proof of a well-ordered mind than a man's ability to stop just where he is and pass some time in his own company. If you can learn to live in solitude, if you can learn to live without the presence and support of others, you will be better prepared to do it if it becomes a necessity, such as if you are shunned, outcast, or exiled by others.

      Nothing to my way of thinking is a better proof of a well-ordered mind than a man's ability to stop just where he is and pass some time in his own company. If you can learn to live in solitude, if you can learn to live without the presence and support of others, you will be better prepared to do it if it becomes a necessity, such as if you are shunned, outcast, or exiled by others.

    • When speaking about the solitude test, Seneca wrote, quote, "Nothing to my way of thinking is a better proof of a well-ordered mind than a man's ability to stop just where he is and pass some time in his own company." If you can learn to live in solitude, if you can learn to live without the presence and support of others, you will be better prepared to do it if it becomes a necessity, such as if you are shunned, outcast, or exiled by others.

      When speaking about the solitude test, Seneca wrote, quote, "Nothing to my way of thinking is a better proof of a well-ordered mind than a man's ability to stop just where he is and pass some time in his own company." If you can learn to live in solitude, if you can learn to live without the presence and support of others, you will be better prepared to do it if it becomes a necessity, such as if you are shunned, outcast, or exiled by others.

    B1

    10 Times Wikipedia Got It Horribly Wrong

    08:3010 Times Wikipedia Got It Horribly Wrong
    • It's proof of how easy it is for even relatively mild lies to be accepted.

      It's proof of how easy it is for even relatively mild lies to be accepted.

    • It's proof of how easy it is for even relatively mild lies to be accepted.

      It's proof of how easy it is for even relatively mild lies to be accepted.

    B1