Why Should We Learn English?
In my opinion, except mother tongue, all languages should be treated as tools which are used to help us communicate with more people and know their cultures, customs and so on. And as the most popular one of languages, English is worth learning. If we learn English, we can chat with the most part of the population in the world and know their cultures, customs, etc. In another word, English is the top beneficiary language.
As postgraduates, the most important we should do is to do better researches in our own major. But it is a big pity that most materials with academic value are written by English, though they can be translated into Chinese, may be it would not so precise even misleading us.
So it is very important for us to learn English well.