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- His first language is Welsh.
 他的母语是威尔士语。
 
- His first language is Welsh.
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
双语例句
- 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
- 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。
- 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;
- 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。
- 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。
- 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。
- 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。
- French did not replace English as the first language.
 法语却没有取代英语而成为英国的第一语言。
- 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
- 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。
