重心 zhòngxīn HSK7 center of gravity Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 如果你超重,心脏则需要更努力地工作。 rúguǒ nǐ chāozhòng, xīnzàng zé xūyào gèng nǔ lì de gōngzuò. If you are overweight your heart has to work harder. Source: CCMatrix