I studied English for four years with a native speaker.
我跟英语母语者学了四年英语。
If a person has not had a chance to acquire his target language by the time he's an adult, he's unlikely to be able to reach native speaker level in that language.
如果一個人在成人前沒有機會習得目標語言,他對該語言的認識達到母語者程度的機會是相當小的。
Tom is a native French speaker.
汤姆是法语母语者。
She is a native speaker of Serbian.
塞尔维亚语是她的母语。
I am looking for a native speaker who can correct this paper for me.
我正在尋找可以幫我修改這篇論文的母語人士。
I'm not a native speaker.
我不是个母语者。
My parents usually speak to each other in French, even though my mother is a native English speaker.