introduction to environmental protection造句

例句与造句

1. Introduction to environmental protection is a brand new issue of the 20th century ; also , it is the biggest challenge of all human beings and our offspring
   环境保护是廿世纪的新课题，也是人类目前及未来所面临的最大考验。
2. It's difficult to find introduction to environmental protection in a sentence. 用introduction to environmental protection造句挺难的