need doing和 need to do的用法.不要复制的.

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needdoing和needtodo的用法.不要复制的.needdoing和needtodo的用法.不要复制的.needdoing和needtodo的用法.不要复制的.needdoing表被动如the

need doing和 need to do的用法.不要复制的.
need doing和 need to do的用法.不要复制的.

need doing和 need to do的用法.不要复制的.
need doing表被动
如the flower needs watering
need to do 需要做(主动)
we need to finish homework on time

1. need to do 需要做......
He needs to see the doctor.
2. need doing = need to be done 这就是所谓的主动形式表示被动的意义
My watch needs repairing. = needs to be repaired
类似的此还有want, require(需要)。