People who speak different languages cannot mutually understand each other.If people all over the world speak the same language,then the world will be different.
First of all,if people speak the same language,it will be very easy for people from different countries to communicate.Then,there is no need to have translation or interpretation over the international conferences.In this case,a large sum of money can be saved.
Secondly,if people speak the same language,they can get along with each other harmoniously.people who speak different languages often have varied religious belives,which always leads to misunderstanding or even conflicts.
Thirdly,if people speak the same language,the economic and cultural exchanges among countries can be improved.Nowadays,different languages are the obstacles for the cross-cultural communication and international trades.so if people speak the same language,this kind of interaction will easily come ture.
