白费口舌

[bái fèi kǒu shé]

• whistle down the wind
• waste one's words
• waste one's breath
• mount on a dead horse

参考释义

白费口舌 [bái fèi kǒu shé]

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例句

1. 老师发现他是在白费口舌；孩子们根本不相信他。
   The teacher saw that he was wasting his breath; the children refused to believe him.
2. 他谁的话都不听，你只是在白费口舌。
   He won't pay attention to anybody. You're just wasting your breath.