喉头喷雾器

SSS 2012-08-13

Elephants dont need cell phones to hold long distance conversations, their deep calls can travel miles. And although humans cant always hear these vocalizations because of their low frequency, elephants produce them using the same mechanism that lets

发表于:2019-01-08 / 阅读(120) / 评论(0)

Scientific American(八)月

VOA标准英语2010年-Throat Cancer Largely Due to Smoking A

Actor Michael Douglas has become the international face of throat cancer since he announced he had the disease. The actor says his doctors give him an 80 percent chance of beating the cancer. Michael Douglas didn't speak to reporters at the premiere

发表于:2019-01-14 / 阅读(132) / 评论(0)

VOA标准英语2010年(九)月

Adams Apple: 喉结

Adam's Apple: 喉结有一个词语叫成长，它会使种子发芽、小树长高，也会让毛头小伙瞬时肩宽臂阔，让黄毛丫头转眼婀娜多姿。不用详细解析，想必您也清楚， Adam's Apple（喉结）亦是成长期第二

发表于:2019-01-21 / 阅读(164) / 评论(0)

英语口语

【英语时差8，16】男孩变声时

For adolescent boys, a changing voice that cracks in the middle of a sentence can be a great embarrass-ment. Though embarrassing, a cracking voice is a natural part of adolescent development. As a boy goes through adolescence, his secondary sex chara

发表于:2019-01-22 / 阅读(104) / 评论(0)

英语时差8，16

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