疲劳 píláo HSK7 fatigue Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: material fatigue All meanings 10 píláo 10 fatigue 9material fatigue 1 1 sentence for 疲劳 (píláo — material fatigue) 金属疲劳是导致这起机械事故的主要原因。 jīnshǔ píláo shì dǎozhì zhè qǐ jīxiè shìgù de zhǔyào yuányīn. Metal fatigue was the main cause of this mechanical accident. Source: Dong Chinese Dictionary