关于be covered with/by的问题.

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/04/30 15:41:52

关于be covered with/by的问题.
请看例句:
1.Over all,more than 70 per cent of the surface of our planet is covered by water.
2.Most of the earth is covered with water.
为什么一个用by另一个又用with呢?

e covered with是覆盖的意思,表状态.be covered by是被...包裹着的意思 ,表动作.
我是英语教师,再不明可问.

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