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更新日期:2026-08-14
do sth till you are blue in the ˈface(informal)to try to do sth as hard and as long as you possibly can but without success徒然拚命地干;徒劳无功You can argue till you're blue in the face, but you won't change my mind.你可以费尽口舌,但改变不了我的主意。