feed的用法Whales feed in Arctic and Antarctic waters during the

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/29 02:32:42

feed的用法
Whales feed in Arctic and Antarctic waters during the summer months.
为什么这里是feed 而不是are fed

feed做不及物动词
意思是.吃;以...为食物;以...为能源[(+on)]
Sheep feed on grass.
羊吃的是草.

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