您要查找的是不是：
- Daily practice is the trick in learning a foreign language. 每天练习是学会一门外语的诀窍。
- It's not easy to master a foreign language. 掌握一门外语并不容易。
- It pays to learn a foreign language. 学外语是值得的。
- A good dictionary is indispensable for learning a foreign language. 学习外语离不开好的词典。
- As a college student, it is important to master a foreign language. 作为一名大学生，掌握一门外语是非常重要的。
- Neither fluency nor accuracy is easy to come by in learning a foreign language. 学习外语要达到流利或精确的程度都是不容易的。
- You can't expect to learn a foreign language in a week. 不要指望一个星期就能学会一门外语。
- You must be good at a foreign language. 你们要学好一门外语。
- It is essential that we learn a foreign language. 我们学一门外语很必要。
- I find it difficult to learn a foreign language. 我发现学外语是困难的。
- It takes patience to learn a foreign language. 学一门外语需要耐心。
- manipulate a foreign language 熟练地使用一门外语
- I think it necessary to learn a foreign language. 我认为学习一门外语是必要的。
- Do you like learning a foreign language? 你喜欢学习外语吗？
- All the children must learn a foreign language. 所有的儿童必须学一门外语。
- They were all babbling away in a foreign language. 他们都叽里咕噜地说着外语。
- I think it hard to master a foreign language. 我认为掌握一门外语是很难的。
- To master a foreign language is not an easy thing. 掌握一门外语不是一件容易的事。
- It requires efforts to master a foreign language. 掌握一门外语需要种种努力。
- English is no longer a foreign language. 第四,英语不是外语。
