不约而同 bùyuē'értóng HSK7 in unison Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 看到精彩的进球,全场观众不约而同地欢呼起来。 kàndào jīngcǎi de jìnqiú, quán chǎng guānzhòng bùyuē'értóng de huānhū qilai. Upon seeing the spectacular goal, the entire audience burst into cheers simultaneously. Source: Dong Chinese Dictionary