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unavailing

英 [ʌnə'veɪlɪŋ] 美[,ʌnə'velɪŋ]

英英释义实用场景例句

adj. 无效的；徒劳的；无益的；无用的

英英释意

1. producing no result or effect;: "a futile effort"; "the therapy was ineffectual"; "an otiose undertaking"; "an unavailing attempt"