Is it necessary to learn slangs?
There is culture in every language,and a lot of culture is carried by slangs.For example,the offical language of China is Mandarin,but when you go to some places like Guangdong and Hong Kong,communication would be really easy if you know some Cantonese.It's not only the language you'll use,but also helps you with emerging yourself into their culture.Let's take another example:when we study English,we cannot assume that we always hear standard British or American English.Slangs or different accents can be heard everywhere.These are also English,maybe they are even more closer to the real life.They also give us a great push towards English culture.Based on the above opinions,I think it's really necessary to learn Slangs and Accents.
