| 词汇 | 白费力气 |
| 释义 | 白费力气 bai fei li qi ㄅㄞˊ ㄈㄟˋ ㄌㄧˋ ㄑㄧˋ 1.to waste one's energy; to plough the air; to gnaw a file; to bite on granite; to bang (or knock) one's head against a brick (or stone) wall; to beat the wind; to sow the sands |
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