well-known 众所周知 important 重要的 pollution 污染
focus 面对 benefit 益处 development 发展
society 社会 knowledge 知识 necessary 必要的.
opinion 观点 harm 危害 exception 例外
advantage 优点 disadvantage 缺点 serious严峻的
measures 措施 solve 解决 overcome 克服
increase 增加 decrease减少 deny 否认
prefer 喜欢 example 例子 addicted 沉迷
useful 有用的
play an important role in our life在生活中扮演重要角色
with the development of our society 随着社会的发展
bring a lot of benefits 带来很多益处
everything has two sides 任何事物都具有两面性
Become more and more serious 变得越来越严峻
on the contrary 相反 take measures 采取措施
solve this problem 解决这个问题
the best way to 最好的方法
overcome the difficulties 克服困难
be faced with 面对
No one can deny the fact that 没有人能够否认这个事实。。。
in favour of 赞同 支持 For example 例如
become addicted to the Internet 沉迷于网络 All in all 总之
come to the conclusion 得出结论
As far as I am concerned that 就我而言
There is no doubt that 毫无疑问
in a right way 正确的方法
waste a lot of time 浪费时间