1 他大约还要留学2年才能回来
He needs roughly 2 more years to complete his study and back to the country

2 他还要在美国留学3年。
He needs 3 more years to complete his study in the United States

3 她女儿在法国留学
Her daughter study abroad in France.

4 你在法国留学几年了？ / 她已经在法国留学4年了。
How long have you been studying abroad in France? / She has been studying abroad in France for 4 years.

5 非专业人士，请勿模仿
Non-professionals, Please do not imitate

6 他去哪里留学了? /他哪一年去美国留学的？
Where did he went to study abroad? / In which year did he pursue his study in the United States