二次 èrcì quadratic Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: second time All meanings 2 èrcì 2 quadratic 1second time 1 1 sentence for 二次 (èrcì — second time) 我们必须防止二次灾害的发生。 wǒmen bìxū fángzhǐ èrcì zāihài de fāshēng. We must prevent a secondary disaster. Source: OpenSubtitles