Question

英语used的用法？

On the third floor there are two rooms , one of them is used as a meeting room中为什么要用is used

Answer 1

use的用法：

used to表示过去常常做某事；

be used to 被用来做；

be used to + doing习惯于；

be used to do被用于。

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“On the third floor there are two rooms, one of them is used as a meeting room.”

三楼有两间屋子，其中一间被用来做会议室。

“被作为会议室使用”，这里是被动，所以用is used

Answer 2

Be/get used to doing sth 习惯于做某事
Used to do sth过去常常做某事
Be used to do sth被用作……

Answer 3

used to do 过去常常
be used to doing 习惯于