直线 zhíxiàn HSK5 straight line Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: sharply All meanings 10 zhíxiàn 10 straight line 8sharply 2 2 sentences for 直线 (zhíxiàn — sharply) 入冬以来,气温直线下降。 rùdōng yǐlái, qìwēn zhíxiàn xiàjiàng. Temperatures have plummeted since the beginning of winter. Source: Dong Chinese Dictionary现在图书销量直线下降。 xiànzài túshū xiāoliàng zhíxiàn xiàjiàng. Book sales are plummeting right now. Source: OpenSubtitles