第1个回答 2014-09-18
The population of the world increases quickly, give us many questions
第2个回答 2014-09-18
The rapid increase of the global population brings us many problems.
第3个回答 2014-09-18
A lot of problems arise because of the fast increase of world population
第4个回答 2014-09-18
The populatoin grow faster
追答in the world
.
It cause many problems