youdao

Languages in East Asia tend to have tonal vowels, and those of the north-eastern Caucasus are known for consonantal complexity: Ubykh has 78 consonant sounds.

东亚的语言往往有带声调的元音，而东北高加索地区的语言以辅音复杂而闻名：尤比克语有78个辅音。

youdao

While the first two languages are generally known, the last two come as a surprise.

虽然前两种语言是众所周知的，而后两种的出现绝对让人感到吃惊。

youdao

Sign languages vary from country to country,and many are not well known internationally.

VOA: standard.2009.09.10

Still, there are millions of people speaking other languages -- including French, German, Mandarin, Arabic and lesser known languages -- that also benefit from bilingual workers.

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Dr. Gell-Mann, a Nobel Prize-winning physicist with a keen interest in historical linguistics, is co-founder of a project known as Evolution of Human Languages.

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The French are not known for their proficiency in foreign languages.

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