东风吹马耳

dōngfēngchuīmǎ'ěr

like the east wind blowing at the ear of a horse—go in one ear and out the other

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东风吹马耳

dōng fēng chuī mǎ ěr

be like the east wind blowing at the ear of a horse -- go in one ear and out the other; gain no hearing; leave no impression; produce no effect