对。。。。有很大帮助
be very helpful to sb
他是个盲人, 触觉地图对他出行有很大帮助。
He is a blind man. The brail map is very helpful to him when he travels
do great help to~~~
eg:Your words do great help to me.
你的话对我帮助很大
be of great help to
do great help to~~~
be very helpful to
it is much helpful to ...
be of great help to
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