常見例句A cloud is a mass of vapor in the sky. 雲(yún)是天空中的水汽團(tuán)。I have a slight calcium deficiency. 我有點(diǎn)缺鈣。The mass rally was a total fiasco. 那次群衆(zhòng)集會(huì)徹底失敗。Let's collect the sap before its consolidation into a hard mass. 讓我們?cè)跇湟簣?jiān)固成團(tuán)之前將之收集起來(lái)。The child has a calcium deficiency. 那孩子缺鈣。After harvest we will have a mass of rice. 鞦收後,我們將獲得大量稻穀。 返回 mass deficiency