The foundation on which many industries were bulit was the use of the rich raw materials in the local place.

许多工厂都是建立在利用当地丰富的原材料的基础上的。

重点词语：foundation n.基础，慈善机关，基金，基金会，捐款

商务用语：the foundation of the national economy 国民经济的基础

foundation hospital 慈善医院

factory foundation 工厂基金

Books on that shelf are free of charge.

那个书架上的书是免费的。

重点词语：free adj.免费税的，免除…的

商务用语：an interest-free loan 无息贷款

free medical care 公费医疗

free goods 免税品