A：Daniel, I can't catch up with the English teacher very well. 
丹尼尔，我跟不上英语老师的课。

B：What's the problem?
什么问题呢？

A：You are quite good at English, can you help me with it. 
你英语很好，你能帮我吗？

B：That's OK. But you'd better take an additional course in some English schools.
可以啊，但是我建议你最好去一些英语学校学一些额外的课程。

A：English school? What is that? 
英语学校？是什么学校啊？

B：This kind of school is good at helping people to improve their English.
这种学校善于帮助大家提高英语水平。

A：Is that different from our school's English course? 
那和我们的英语课程有区别吗？

B：Yes, before you start your training, they will test you on your English first.
当然有啊，在你进行培训之前，他们先会对你的英语进行测试。