vt.
1.
花费；价格为；值：It must cost a good deal to live here.住在这里一定要花很多钱的.
2.
使付出；使损失,使失去：Careless driving cost him his life.开车不小心使他丧了命.需(努力)；费(事)：
3.
Courtesy costs little and means much.礼貌不费事,意义却很大.
vi.
1.估计成本：We want a man who must be able to cost.我们需要一个能计算成本的人.
2.需要花费,需要付出高昂代价：The furniture in the living room really costs.起居室里的这套家具真花了不少钱.