My study. Part 1

I'm learning English.

Now, I have some question.

【1:Some words which have same meaning】

I don't understand it.

For example, "experience" and "undergo ".

I don't understand that "experience" is different from "undergo".

There are many the problems, so I have trouble.

Help me!

I fight to read English for understand this.

Please give me advice.

From : Tsubaki ( 'ω')/☆