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 used as their first language.
  英语被用作他们的第一语言。
• On the Application of Translated First Language Materials in English Teaching
  刍议英译的母语材料在英语教学中的应用
• Language: Creole is the first language, English and French are also spoken.
  语言：克里奥尔语为国语，通用英语和法语。
• 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。
• The first language I spoke was Chinese and I learned English later, but I forgot all my Chinese.
  我会的第一种语言是汉语，后来我才学得英语，但是现在我已经把汉语全忘了。
• It launched its first language course last year for 40 people.
  孔子学院去年开设了首个语言课程，共收学员40人。
• If your first language is not English, you should still try to read the non-literary works in English.
  如果你的母语不是英语，你仍应该努力以英语去读这些非文学作品。
• A Research on Schema Theory and Negative Transfer of First Language in Second Language Writing
  图式理论与二语写作中母语负迁移的研究
• English is my first language but I also studied French in high school.
  英语是我的第一语言，但我在高中还学了法语。
• French, the official language, is the first language of88% of the population.
  法语，官方语言，这是第一语言的88%的人口。