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Pronunciation ChallengeHow Classrooms Slow Your Brain Down

Host : Annie Huang
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Have you guys have experiences that you feel sleepy when in a classroom or an office?

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Challenge History

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Total 0 Challenges Completed

Today's Sentence

Video not in English?
How Classrooms Slow Your Brain Down
The longer we stay in an unventilated space, especially with multiple people, the higher the concentration of carbon dioxide in the atmosphere.
Original Video：How Classrooms Slow Your Brain Down

Key Vocabulary

1. unventilated

unventilated

[ʌnˋvɛntə͵letɪd](adj.)

ventilate

[͵vɛnt!ˋet](v.)

vent

[vɛnt](n.)

2. concentration

concentration

[͵kɑnsɛnˋtreʃən](n.)

3. atmosphere

atmosphere

[ˋætməs͵fɪr](n.)

0 participants have completed today's challenge

Sunny Shih5 years ago

^ ^

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Dreamer5 years ago

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mhoq5 years ago

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Frank5 years ago

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August5 years ago

Thank you, Annie. Have a great day, everyone.

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levi4 years ago

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Michelle5 years ago

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Freda Ke5 years ago

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Freda Ke5 years ago

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Chen5 years ago

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