Gb	Eng
我们计算了成本, 清楚表明这项工程不合算.	When we had done the costings on the project, it was clear it would not be economical to go ahead with it.
本星期买胡萝卜和洋白菜最合算，因货源充足，价格低廉。	Best buy of the week are carrot and cabbage, which are plentiful and cheap.