名词
中文翻译：精子
同义词：
['sperm', 'spermatozoon', 'spermatocyte', 'spermatid', 'spermatozoa例句：1. The spermatozoon is the basic unit of human reproduction.（精子是人体生殖的基本单位。）']
例句：
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1. The spermatozoon is the basic unit of human reproduction.
精子是人体生殖的基本单位。
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2. He was unable to produce any spermatozoon during his test.
他在测试中无法产生任何精子。
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3. Spermatozoons are produced in the testes and travel down the vas deferens to reach the ejaculatory duct.
精子在睾丸中产生，然后通过输精管到达射精管。