mother tongue

英 [ˌmʌðə ˈtʌŋ]

美 [ˌmʌðər ˈtʌŋ]

n. 母语; 本国语

牛津词典

noun

母语;本国语;本族语
Yourmother tongueis the language that you learn from your parents when you are a baby.

noun

I speak nothing but our mother tongue. What's your native language?
我只说我们的本国语。你的本国语是什么？
His mother tongue is Portuguese.
他的母语是葡萄牙语。
The scholar is well versed in Latin, not to speak of English which is his mother tongue.
那位学者精通拉丁语，至于他的本族语英语就更不用说了。
A pep talk I therefore encourage you to take both English and your mother tongue language very seriously.
（教练对运动员的）鼓励性讲话，精神讲话因此，我鼓励你认真对待英语和母语；
Including your mother tongue and your second foreign language tool.
第二是语言技能，包括你的母语和作为工具的第二外语。
I want to talk with people when they are using their mother tongue.
我想要和别人交谈，用她们的民族标准语。
By the end of the week, I couldn't even remember one word of my Mother Tongue.
在这个星期快结束之时，我甚至记不起我母语中的任何一个词藻。
Instead we learned or acquired our mother tongue by communicating with the people around us.
我们的母语是通过和我们周围人们的交流而学习或获得的。
I was brought in Bolin and french is my mother tongue.
你猜对了！我生长在法语是我的母语。
He can't speak his mother tongue, much less english.
他连自己的母语都说不会，更别提英语了。