We know that cattle mainly feed on grass , and humans mainly liive_ rice and wheat.on\up\with

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We know that cattle mainly feed on grass , and humans mainly liive_ rice and wheat.on\up\with
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We know that cattle mainly feed on grass , and humans mainly liive_ rice and wheat.on\up\with
We know that cattle mainly feed on grass , and humans mainly liive_ rice and wheat.
on\up\with

We know that cattle mainly feed on grass , and humans mainly liive_ rice and wheat.on\up\with
live on以什么为食
如还有不懂的,还可以继续追问哦\(^o^)/~

live on vi. 靠...生活；以...为食

on吧