【陆哲说】雅思考试攻略之雅思备考长难句仿写 06

Two major air problems in urban areas need to be solved: traffic exhausts can be greatly reduced by policies strictly restraining the usage of private cars; industrial tail gas can be hugely alleviated by relocating factories far away from cities.

How much freedom parents are supposed to give their children needs to be considered more carefully than before because contemporary children are growing up in a more complex and sophisticated environment in which they are able to access all sorts of information including the one they need and the one they should be away from.