上紧 shàngjǐn to tighten Definitions Defs Origin 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