名词
中文翻译：交配
同义词：
['mate', 'copulate']
例句：
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1. The couple has been trying to conceive for several months now.
这对夫妇已经尝试怀孕几个月了。
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2. She was surprised when she found out that her husband had a mistress.
当她发现她的丈夫有外遇时，她感到很惊讶。
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3. The scientists are conducting experiments to study the effects of artificial insemination on fertility.
科学家们正在进行实验，以研究人工授精对生育力的影响。