That would only play into the hands of reactionaries, not help the reformers.

那仅能予以反动派可乘之机, 而无助于改革派.

Some argue that a ban would play into the hands of those who spread hardline propaganda.

一些人表明禁令将被那些散布强硬路线宣传的人所利用.

She argued (with feeling) that the organization had lost sight of its original ideals, and had become a moonist militia that would only play into the hands of the powers.

她（激动地）争辩道，我们的组织已经失去最初的理想，我们的组织象个“月亮卫队”，那样只会给权力以可乘之机。