All the main languages have been studied prescriptively, especially in the 18th century approach to the writing of grammars and dictionaries.

所有主要语言都经过了规定性的研究，特别是在18世纪语法和词典的写作方法中。

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Two of the main languages here are Xhosa and English.

这里的两种主要语言是科萨语和英语。

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Chinese is our mother tongue and it's one of the main languages in the world.

汉语是我们的母语，也是世界上的一个大语种。

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Enduring Voices recently travelled to Paraguay, a country with many different languages in addition to the main language,Spanish.

VOA: special.2009.12.02

The local languages (Gujjari) and Hindi were used as the main languages of instruction.

UNESCO: Teaching the Nomads in the Wild

Statisticians said they recorded more than 100 different languages and 49 main languages with more than 15, 000 users.

BBC: Quiz of the week's news

Duckworth was inspired to open her Rolodex and start an organization called Arzu, which means "hope" in Dari, one of the main Afghan languages.

FORBES: Buy a Rug, Educate a Girl