English Vocabularies about work and jobs

When you study English, you need to know the method of learning to suit your purposes and ambitions. If you want to learn English only for some particular jobs, then go and study English with the focus of that subject. 
learning English on the context is now becoming more and more popular. It means that some people do not want to study the whole of English grammar and vocabulary book, but they want to learn English in the subject filed that they need for their career.