More and more schools in Europe are teaching Chinese as a foreign language.

越来越多的欧洲学校在教授中文作为外语。

More and more schools in Europe are teaching Chinese as a foreign language, together with some European languages.

越来越多的欧洲学校在教授一些欧洲语言的同时，也教授中文这门外语。

This book is written in a foreign language.

这本书是用洋文写的。

Learning a foreign language is very easy for him.

对他来说，学外语如履平地。

Is there a foreign language version of this book?

这本书有外文版本吗？

Do you find learning a foreign language difficult?

你觉得学外语难吗？

She plans to take a foreign language as an elective.

她打算选修一门外语。

Learning a foreign language can broaden your horizons.

学习洋文可以开阔视野。

Many people think mastering a foreign language is important.

许多人认为掌握一门外国语很重要。

Mastering inflexion is important when learning a foreign language.

学习外语时，掌握变音是很重要的。