上紧 shàngjǐn to tighten Origin Definitions Defs Strokes Stroke Words Sentences Sents 1 sentence 他们不需要你每天为他们上紧发条。 tāmen bùxūyào nǐ měitiān wèi tāmen shàng jǐn fātiáo. They don’t need you to wind them up every day. Source: CCMatrix