追溯 zhuīsù HSK7 trace back Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: go upstream All meanings 9 zhuīsù 9 trace back 8go upstream 1 1 sentence for 追溯 (zhuīsù — go upstream) 考察队决定沿着这条河向上追溯,寻找水源。 kǎochá duì juédìng yánzhe zhè tiáo hé xiàngshàng zhuīsù, xúnzhǎo shuǐyuán. The expedition decided to trace back up the river to find the water source. Source: Dong Chinese Dictionary