英文翻译1正在建设的这栋大楼将用作我们的图书室2无论你干什么你都应该遵守法律3站在树下的那个男孩是我

1，
The building is under construction will be used as our library
,2，
No matter what you do should abide by the law
,3，
The boy standing under the tree is my cousin
,4，
Rather than play computer games I like learning English
,5，
Only in this way can you improve your spoken English
,6，
Now many rivers in the world is not suitable for drinking water has been polluted our water resources must be protected against pollution。（现在世界上许多河流的水已被污染不适合饮用我们必须保护水资源不受污染）
7，
Protect environment is our duty（保护环境是我们的职责）
8.
You must finish your homework before I went home
9，We've since grade school have been good friends

1.The building which is under construction will be used as our library.
2.No matter what you do you should obey the law.
3.The boy who is standing under the tree is my cousin.
4.I like learning English rather than playing computer games.
5. only in this way can you improve your spoken English.
6 now many rivers in the world is not suitable for drinking water has been polluted our water resources must be protected against pollution.
7 Protect environment is our duty.
8 you must finish your homework before I went home.
9 we were good friends since we were in primary school.