The dictionary is a living teacher.Whenever you meet with an unfamiliar word or a new expression,you can look it up and get a clear explanation or illustration of the word or expression.Every student,whether in school or at home,is likely to have one copy at hand.Being convenient,inexpensive and full of information,the dictionary indeed is a great aid to language learners.
The constant use of various dictionaries will help develop your language skills.The more you use them,the more skillful you will become in using them.Sooner or later,you will be so skilled that,for an unfamiliar word or a new expression you can quickly locate the page,scan the entry and find the exact information quickly.