A: I really want to give up my studies.
B: What? How can you say so?
A: I can't catch up with my classmates. I can't follow the teacher in class.
B: Don't give up. I think as long as you work hard, you will make progress step by step. All of us can help you.
catch up with
Catch up with的意思是：赶上。
e.g. Let's hurry and catch up with the group ahead.
e.g. Jill had to run fast to catch up with her friends.
e.g. If they arrived early ten minutes, just they catch up with the airliner.
e.g. We are trying our best to catch up with the developed countries.
1. give up ：放弃
e.g. It is likely that he will give up in despair.
e.g. The soldiers forced their prisoners to give up their arms.
2. in class：上课
e.g. He was expelled for smoking in class.
e.g. Once we caught him dozing off in class.
3. as long as ：只要.......
e.g. We can stay here for as long as our supplies hold out.
e.g. As long as I live I shall look back upon it with regret.
4. work hard : 努力学习或工作
e.g. He has to work hard to feed and clothe his family.
e.g. If you work hard, you shall have a holiday on Saturday.
5. make progress ：取得进步
e.g. Modesty helps one to make progress, conceit makes one lag behind.
e.g. So you make progress with Miss Barkley?
6. step by step: 一步一步地
e.g. If you want to obtain knowledge,you must learn step by step.
e.g. I want to hear your whole story again, we'll take it step by step.