only by doing __that way can we save the earth.为何可省IN
问题描述：
only by doing __that way can we save the earth.
为何可省IN
答
你只要记得这3个以后就难不倒你了
Only by this way can...
Only by doing that way...
Only in this way can...
答
in that way以那种方式
in this way以这种方式
in some way在某种程度上
in no way决不
答
that way 也可以做副词,有和in the way“那样子”一样的意思
翻译：只有那样做才能拯救地球.