名词
中文翻译：外源生殖
同义词：
['ecto-fertilization', 'external fertilization']
例句：
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1. Xenogenesis has been proposed as a way to preserve endangered species by artificially inducing their reproduction.
提出了一种通过人工诱导繁殖来保护濒危物种的方法，即外源生殖。
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2. In xenogenesis, the sperm and egg are brought together outside of the body.
在xenogenesis中，精子和卵子是在体外结合的。
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3. The process of xenogenesis is still not fully understood, but it has potential applications in genetic engineering.
xenogenesis的过程尚未完全理解，但它在基因工程中有潜在的应用。