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| 内生殖器 (男性内生殖器包括生殖腺 (睾丸)、输精管道 (附睾、输精管、男性尿道)和附属腺 (精囊、前列腺、尿道球腺)组成。睾丸产生的精子贮存于附睾内，当射精时精子经输精管道排岀体外。附属腺的分泌液与精子合成精液，有营养和增进精子活动的功能。睾丸分泌男性激素，形成和维持第二性征) | |||
| 内生殖器 | |||
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internal genital organ : 3 phrases in 2 subjects |
| Life sciences | 2 |
| Surgery | 1 |
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