常見例句A cloud is a mass of vapor in the sky. 云是天空中的水汽團。His broken leg was encased in plaster. 他折的腿打上了石膏。The plaster had started to come away from the wall. 灰泥已經(jīng)開始從墻上脫落。The mass rally was a total fiasco. 那次群眾集會徹底失敗。Put a plaster on the sore once a day. 把這膏藥每日一次敷貼患處。Let's collect the sap before its consolidation into a hard mass. 讓我們在樹液堅固成團之前將之收集起來。 返回 plaster-mass