He is fluent in three languages.
他能流利地说三门语言。
I can read and write in three languages.
我能用三种语言读和写。
He can converse in three languages.
他可以用3种语言谈话。
I can read and write in three languages.
我可以用三种语言进行读写。
My friend is proficient in three languages.
我的朋友精通三种语言。
German, French and Italian are the three main languages spoken in Switzerland.
德语、法语和意大利语是瑞士的三种主要语言。
Three of the biggest languages in the world.
它们是世界上最重要的语言之中的三种。
There are probably about three thousand languages in the world today.
现在，世界上现存的语言大概有三千多种。
There are probably about three thousand languages in the world today.
现在，世界上现存的语言大概有三千多种。
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