1.work out 解决；算出

例句:Negotiators are due to meet later today to work out a compromise.
谈判人员定于今天晚些时候进行会谈，商定一个折中方案。

2.carbon atom 碳原子

例句:Each of the four valency electrons of the carbon atom is shared with one of a hydrogen atom.
碳原子的四个价电子都各与氢原子的一个价电子共用。

3.link up 连接

例句:Transport and communication lines link up all parts of the province.
全省交通运输四通八达。

4.relied on 依靠

例句:The U.S. has increasingly relied on Japanese capital.
美国越来越依赖日本的资本。