a. 双刃的, 两可的, 意义双关的, 双重目的的
在线英汉词典www.zbyw.cn

double-edged的短语、例句：

double-edged adj 1 (of a knife, etc) having two edges （指刀等）双刃的. 2 (fig 比喻) (of a remark) having two possible meanings; ambiguous （指言语）模棱两可的, 含糊其辞的
a ,double-edged `argument, `compliment, re`ply, etc 语意含混的论据、 恭维话、 答覆等.