first language

英 [ˌfɜːst ˈlæŋɡwɪdʒ]

美 [ˌfɜːrst ˈlæŋɡwɪdʒ]

n.  母语; 第一语言

牛津词典

noun

• 母语；第一语言
  the language that you learn to speak first as a child; the language that you speak best
  1. His first language is Welsh.
     他的母语是威尔士语。

柯林斯词典

• 母语;第一语言
  Someone'sfirst languageis the language that they learned first and speak best; used especially when someone speaks more than one language.

英英释义

noun

• one's native language
  Synonym:mother tonguematernal language

双语例句

• English is spoken as the first language in many countries.
  英语在许多国家被当作第一语言使用。
• In many other countries, where English is not a first language, it is an official language;
  英语在许多国家不是第一语言，但却作为官方语言存在；
• His first language is English, but he speak several other languages very well.
  他的母语是英语，但他会说好几门外语。
• English is the first language in none of these countries.
  英语在这些国家中都不是第一语言。
• Even in our first language, we all know or understand more words that we actively use.
  在我们的母语中，我们都知晓或者明白比常用词更多的词汇。
• Most people speak English as a first language in the USA.
  在美国，大多数人把英语作为第一语言（主动语态）。
• French is spoken as the first language in this country.
  在这个国家法语被当作第一语言来说。
• Today, I think I use English more than my first language.
  如今，我用英语比用我的母语要多。
• The first language he learned to write was Greek, which has a different alphabet.
  他最早学习的语言是希腊语，而希腊语有着一套不同的字母体系。
• My first language is dutch.
  我的母语是荷兰语。