na. 【医】(一次射出的)精子计数

美国国家公共电台 NPR Sperm Counts Plummet In Western Men, Study Finds

RACHEL MARTIN, HOST: A wide-ranging study shows that sperm counts are plummeting throughout the Western world, and scientists don't know why. NPR health correspondent Rob Stein suggests some of the potential reasons. ROB STEIN, BYLINE: In Margaret At

发表于:2018-12-17 / 阅读(54) / 评论(0)

2017年NPR美国国家公共电台7月

英语听力—环球英语 1318 Keeping History: Winter Counts

Voice 1 Welcome to Spotlight. Im Adam Navis. Voice 2 And Im Liz Waid. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 3 The year the stars fell. The year o

发表于:2019-01-19 / 阅读(35) / 评论(0)

环球英语 Spotlight

Concerns arise over sperm donors

Beijing, Sept. 6 (Xinhua) -- A sperm donation scandal disclosed recently has aroused growing concern in the United States. According to the New York Times' report, Ryan Kramer, the son of a donor, found that he has more than 150 half-siblings - they

发表于:2019-02-04 / 阅读(72) / 评论(0)

英语新闻

Researchers make sperm from stem cell in dish

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(126) / 评论(0)

英语新闻

omg美语：1023 OMG!美语 Beautiful!

1) Beauty's in the eye of the beholder 情人眼里出西施 2) Beauty is only skin deep 内心美才是最重要的 3) It's what on the inside that counts 内在美才是最重要的

发表于:2019-02-18 / 阅读(35) / 评论(0)

OMG美语

影视歌曲：The Fray-Look After You

If I don\'t say this now I will surely break As I\'m leaving the one I want to take Forgive the urgency but hurry up and wait My heart has started to separate Oh, oh, Be my baby Ohhhhh Oh, oh Be my baby I\'ll look after you There now, steady love, so

发表于:2019-02-20 / 阅读(51) / 评论(0)

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anemize

antenna radiation mechanism

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brush-tail porcupines

Buchanan Hills