On the estimates of David Crystal, a British expert, some 350m people speak English as their first language.

据英国专家大卫·克莱斯特估计，有3亿5千万人把英语作为第一语言。

youdao

David Crystal is a British linguist who has written more than 100 books, including the book "Language and the Internet."

大卫·克里斯托是英国的一名语言学家，他已经写了100多本书，包括《语言和互联网》。

youdao

David Crystal is a British linguist who has written more than one hundred books, including the book "Language and the Internet."

戴维·克里斯特是已经写了包括‘语言和因特网关系’在内的一百多本书的英国语言学家。

youdao

David Crystal is a British linguist who has written more than one hundred books, including the book "Language and the Internet."

VOA: special.2010.01.28

But Erin Jansen and David Crystal agree with Eleanor Johnson on at least one thing.

VOA: special.2010.01.28

David Crystal is a British linguist and author of over 100 books, including 2001's Language and the Internet.

VOA: standard.2010.01.16

Phonics teaching is an important component of the teaching of reading, but not all words in English are phonically regular (the linguist David Crystal estimates 80% are, but the other 20% contains many of the most common words in English).

BBC: Viewpoints: Teaching children to read

The plot is given an extra twist by involving both deaf characters - played by Sarah Beauvoisin and David Ellington and their hearing, signing colleague Ben Crystal - in a complicated love triangle.

BBC: Ben Crystal and Sarah Beauvoisin show off their skills

Written by John Kamps ("Zathura") and David Koepp ("Indiana Jones and the Kingdom of the Crystal Skull") and directed by Koepp, "Ghost Town" is a light comedy about a misanthropic dentist, Bertram Pincus, who develops an unwelcome sixth sense after losing his vital signs for several minutes during a routine colonoscopy.

CNN: Review: Gervais gives edge to 'Ghost Town'