他声称自己整晚都在家，但在三位目击证人指认他在酒吧后，这个说法就站不住脚了。
His claim that he had been at home all evening became untenable when three witnesses placed him at the bar.
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解释
untenable 形容说法在事实面前被彻底戳穿、无法维持。
His claim that he had been at home all evening became untenable when three witnesses placed him at the bar.
untenable 形容说法在事实面前被彻底戳穿、无法维持。