Water off a duck's back


鸭子身上的毛就像雨衣一样,水在上面呆不住,一下全滑掉了。因此,water off a duck's back 是指毫无作用。就像下面这句句子所说的:

例句-1:"I keep telling my friend it's foolish to gamble all his pay, but it's like water off a duck's back."

这是说:“我一直告诉我的朋友,不要那么傻,把所有的工资都用在赌博上。可是,我的话对他全然不起作用。”


另外一个例子是:

例句-2:"The doctors tell us it`s dangerous to smoke, but such good advice rolls off some people like water off a duck's back."

这是说:“医生都告诉我们抽烟对身体是有害的。可是,这种劝告对于有些人来说就像耳边风一样,毫无作用。”

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