独木不成林 dúmùbùchénglín collaboration Origin Definitions Defs Strokes Stroke Words Sentences Sents 单丝不成线，独木不成林 dānsībùchéngxiàn, dúmùbùchénglín cooperation one strand does not make a thread, one tree does not make a forest; a proverb meaning that an individual cannot achieve significant results without collective effort