The plan is heard designed so well that we don't hane to make any changes.

The plan is heard designed so well that we don't hane to make any changes.
为什么用 designed 而不用to designed
不是be heard to do sth
英语人气:241 ℃时间:2020-04-12 13:46:46
优质解答
因为这里的design是被动语态,被设计
所以应该是be heard (to be) done,
to be省略掉了.
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