柯林斯詞典unavailing /??n??ve?l??/ 1. ADJ An unavailing attempt to do something does not succeed. 不成功的 Efforts to reach the people proved unavailing. 接近人群的努力被証明是不成功的。 返回 unavailing劍橋詞典When an attempt to do something is unavailing, it is unsuccessful or has no positive effect . 徒勞的，無(wú)成果的 Diplomatic efforts at peace-making have so far proved unavailing. 調(diào)停爭(zhēng)耑的外交努力到目前爲(wèi)止被証明是徒勞的。 返回 unavailing