| 词汇 | fool's errand | 
| 释义 | fool's errand  noun [ C ] uk/ˌfuːlz ˈer.ənd/ us/ˌfuːlz ˈer.ənd/  徒劳无功的努力 an effort that is unlikely to be successful  It's a fool's errand trying to get Lena to join in anything. 想拉蕾娜参加什么活动根本就是徒劳。  | 
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