| 词汇 | futile | 
| 释义 | futile /ˈfjuːtaɪl; (US) ˈfjuːtl/adj.1. 无用的;徒劳的 All his attempts to unlock the car were futile, because he was using the wrong key.他多次尝试打开车门,但都不得要领,因为他用错了钥匙。2. 无价值的(人) | 
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