无的放矢;
He does not shoot the arrow at the target but shoots at random.
不是有的放矢,而是无的放矢.
do not " target" made no use, only " shoot at random" , sometimes also can bring negative effect.
做不好“靶子”立了没用,结果只能是“无的放矢”,有时还会带来负面作用。
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