三心二意 sānxīn'èryì half-hearted Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 学习要专一,不能三心二意。 xuéxí yào zhuānyī, bù néng sānxīn'èryì. You must focus on your studies and not be half-hearted. Source: Dong Chinese Dictionary