It is difficult to say how many people are learning it as a foreign language.翻译

问题描述:

It is difficult to say how many people are learning it as a foreign language.翻译

作为一个外国语,很难说有多少人学习它

很难说有多少人以第二外语在学习这门语言。

很难说到底有多少人正在学习这门外语.

很难说有多少人正在将其当作一门外语来学习