number 指可数名词的数量; amount 指不可数名词的数量 7.the/ a number of the number of “…的数量”; a number of: “许多的”, 都跟可数名词复数。 前者作主语,谓语用单数;后者作主语,谓语用复数。 The number of the trees___ two thousand. (用单数谓语is. ...
wrong number 打错电话on Monday morning 在星期一上午a new term 新学期Monday morning 星期一上午open your mouth 张开你的嘴go to see a doctor 去看医生have a good rest 好好休息a bad cough 严重的咳嗽 after lunch 午饭以后stay in bed 呆在床上the same hobby 相同的爱好...
minimum number of units they'll produce in a single order. The higher the order quantity, the lower the unit cost. This is due to economies of scale the setup costs for production are spread across a larger number of units, reducing the ...