I want to be an English teacher because English is a useful language.

我想成为一名英语老师，因为英语是一门有用的语言。

youdao

English is a very useful language.

英语是一门非常有用的语言。

youdao

Japanese is a useful language in Asia.

日语在亚洲是有用的语言。

youdao

But I think, yeah, practicing in the country where this language exists is very useful.

但是我想，是的，在这个说英语的国家练习英语很有用。

学习英语的理由 - SpeakingMax英语口语达人

English is a very good language to learn and it's very useful,

英语是一门值得学习的语言，它非常地实用，

要继续努力 - SpeakingMax英语口语达人

Other recently expired empires, such as the British, Dutch, French, had left some residue for locals grudgingly to admire: habits of administration, a legal system, even just a useful language.

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"We live in an ever smaller global community and we probably are at a point where we believe having some language skills is a useful thing - it's what I would call a vocational skill really, " he says.

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It's not just about a better understanding of communication over the ages, either, as the timeline of a language can also play a useful role in determining the order of pre-history events, such as the movement of populations over a continent.

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