看起来，爱是一份长期的承诺保险，确保你的伴侣不会轻易离开你，不论你的腿被截肢了还是你的卵巢被切除了。
Love is apparently a form of "long-term commitment insurance" that ensures your mate is less likely to leave you, should your legs fall off or your ovaries fall out.
你可以根据你的基础体温画个表，除了有点花时间外，这种方法还是很精确的。
You can chart your basal body temperature which is a more precise (if more time-consuming) method.
你可以根据你的基础体温画个表，除了有点花时间外，这种方法还是很精确的。
You can chart your basal body temperature, which is a more precise (if more time-consuming) method.
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