名词
中文翻译：睾丸
同义词：
['testicle', 'scrotum']
例句：
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1.He removed the tunica albuginea to examine the wound.
他切除了睾丸以检查伤口。
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2. The testis is responsible for producing sperm and hormones.
睾丸负责产生精子和激素。
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3.During puberty, the testis grows larger and develops into an adult size.
青春期时，睾丸变大并发育成成年大小。