主线 zhǔxiàn main line Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: main line All meanings 2 zhǔxiàn 2 main line 1main thread 1 1 sentence for 主线 (zhǔxiàn — main line) 这条高速公路的主线已经全线贯通。 zhè tiáo gāosù gōnglù de zhǔxiàn yǐjīng quán xiàn guàntōng. The main line of this highway has been fully connected. Source: Dong Chinese Dictionary