我曾经教英语10年了，而且我通过了大教英语四级和六级。

I have learned English for 10 years, and I have passed College English Test Band 4 and 6.

youdao

我曾经教英语10年了，而且我通过了大教英语四级和六级。

I have learned English for 10 years, and I have passed College English Test Band 4 and 6.

youdao