How much does it cost to become a member?
要成为会员得花多少钱？
It's time we got on to the question of costs.
我们该讨论成本问题了。
A new computer system has been installed at a cost of 80 000.
新的计算机系统已安装，费用为8万英镑。
That one mistake has cost him dear over the years.
那一个差错使他多年来付出了沉重的代价。
Cost was a key element in our decision.
价钱是我们决策时考虑的主要因素。