How much does it cost to become a member?

　　要成為會(huì )員得花多少錢(qián)？

　　It's time we got on to the question of costs.

　　我們該討論成本問(wèn)題了。

　　A new computer system has been installed at a cost of 80 000.

　　新的計算機系統已安裝，費用為8萬(wàn)英鎊。

　　That one mistake has cost him dear over the years.

　　那一個(gè)差錯使他多年來(lái)付出了沉重的代價(jià)。

　　Cost was a key element in our decision.

　　價(jià)錢(qián)是我們決策時(shí)考慮的主要因素。