在线词典通宵达旦通宵:通夜,整夜;达:到;旦:天亮。整整一夜,从天黑到天亮。拼音tōng xiāo dá dàn解释通宵:通夜,整夜;达:到;旦:天亮。整整一夜,从天黑到天亮。英文释义overnight until daybreak (idiom); all night long; day and night