动词短语
中文翻译：进入发情期
同义词：
['come into season', 'go into heat例句：1. The cows are coming into heat', 'and we need to keep an eye on them.（奶牛们正在发情，我们需要留意它们。）2. The dog is going into heat', 'and she needs to be spayed or neutered.（这只狗即将发情，她需要接受绝育手术。）']
例句：
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1. The cows are coming into heat, and we need to keep an eye on them.
奶牛们正在发情，我们需要留意它们。
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2. The dog is going into heat, and she needs to be spayed or neutered.
这只狗即将发情，她需要接受绝育手术。
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3.The farmer has to come into heat every year to ensure the health of his livestock.
农民每年都要经历发情期，以确保牲畜的健康。