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About sperm results of 378
找不到喜歡的影片嗎？你也能自己匯入影片喔
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04:20
How Health Affects Sperm
257
B2
08:17
How sperm got all the credit in the fertilization story
19
B2
06:28
The Try Guys Test Their Sperm Count
97
B1
03:07
Wearing Tighty-Whities Really Can Lower Your Sperm Count
7
B2
03:12
The Sperm Struggle is Real
12964
C1
02:41
Japanese Delicacy SHIRAKO: Fish Sperm Sac 白子を食べてみました
16
A2
03:54
Can This Rescue Boat Save a Dying Sperm Whale? | South Pacific | BBC Earth
25
B2
05:43
Fertilization
802
C2
03:14
The Male Biological Clock
7455
C1
09:54
5 Things We Still Get Wrong About Human Reproduction
3
B2
03:25
How Does Birth Control Work?
23
B2
07:05
Fertility crisis: Is modern life making men infertile? - BBC REEL
24
B2
01:59
How Does Pregnancy Happen | Planned Parenthood Video
147
C1
05:09
Why Male Birth Control Is So Hard To Make
9
B2
07:03
Why Penises Are Shrinking Across the World
23
B2
02:33
Pregnancy and Reproduction Explained
1414
C1
02:55
Deciphering the Secret Language of Whales
8899
B1
11:05
So you're NOT having a baby...
205
B1
19:42
Fertility Experts Debunk 19 Myths About Getting Pregnant | Debunked
14
B2
06:38
Welcome to the reproductive system
15
B2
01:02
Soy Hormones & Male Infertility
485
B1
04:46
Parents Talk to Their Kids About The Birds and the Bees for the First Time
24342
B2
02:47
The Science of 'Plan B' - Emergency Contraception
996
B2
06:19
Whale Poop Helps Cool Our Planet
20
B1
18:32
生殖医療のドクターだけど質問ある？ | Tech Support | WIRED.jp
17
B1
13:04
Why am I Having Trouble Getting Pregnant? - In Conversation with Dr. Rodi (CC available)
505
B1
04:17
Why Whale Poop Is So Expensive | So Expensive
288
B1
13:59
An Ode to Oden, plus an Unwanted Surprise...
14
B1
43:52
35. Alternative Breeding Strategies
123
B1
04:06
Will This New Male Birth Control Gel Actually Work?
2
B2
06:05
Tokyo Underground Mysteries Game w/ Tokidokitraveller
6
A2
03:41
What If You Stopped Masturbating?
37695
C1
06:59
I was in a car driving in heavy rain and experienced the flow of sperm 我在下大雨中行駛的車子上，體驗到了精子的流動
9
B1
07:07
Superfetation: When You Get Pregnant... Even Though You're Already Pregnant
4
B2
06:18
Racing to Save Dying Coral Reefs
10821
B2
03:27
How Hard Is It To Get Pregnant?
232
B1
03:46
The Most Extreme Sex In The Animal Kingdom
8008
B2
01:46
5 Things Men Should Know About Their Bodies
3608
B2
03:51
Women Talk About Penises
555
B2
07:58
How Close Are We to the End of Infertility?
6
B1
17:06
Have SAFE SEX with Ronnie!
147
A2
03:01
Is Masturbation Good For You?
1827
B2
06:14
Could You Get Pregnant in Space?
2
B2
24:17
BBC News
1514
A2
01:24
SCIENTIFICALLY ACCURATE ™: SPONGEBOB SQUAREPANTS
4487
B2
01:12
What is Surrogacy?
36
B1
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