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

• Certainly there is no big difference between using my first language and using English.
  当然，用英语还是用母语对我而言没有太大区别。
• 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。
• 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。
• 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。
• 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 the first language in none of these countries.
  英语在这些国家中都不是第一语言。
• 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。
• English is used as the first language in america, canada, england, Australia and new zealand.
  英语在美国，加拿大，英国，澳大利亚和新西兰被当作第一语言使用。
• If English is not your first language, you will need at least two good dictionaries.
  如果英语不是你的母语的话，你至少需要两本好字典。
• 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。