名词
中文翻译：小母牛
同义词：
['cow', 'dairy cow例句：1. The farmer milks his cow every morning.（农民每天早上挤牛奶。）']
例句：
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1. The farmer milks his cow every morning.
农民每天早上挤牛奶。
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2.The cow gives birth to a calf every year.
奶牛每年生一头小牛。
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3. The cow is the main source of milk for the family.
奶牛是家庭的主要奶源。