different languages in the world meaning in English

世界上不同的语言

There are many different languages in the world
全世界有不同的语言
There are so many different languages in the world that people decide to use only six
世界上有那么多种语言，因而人们决定只选用其中的六种。
Now , scientists , cultural experts and many other people are concerned about protecting the different languages in the world
现在，科学家、文化专家及很多其他人士正关注对世界上的各种语言的保护。