英语词汇“blow at a cold coal”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	blow at a cold coal
释义	blow at a cold coal 基本例句白费力气;做徒劳无益的事 To argue with such a marl is like beating the air.跟这号人辩论是白费力气。 It is of no use boasting of being rich on a desert island.在无人岛上夸耀富有也是白费力气。
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