31.  Those frequently used words and frequently seen and those frequently seen are memorized and rememorized.

32.  The most efficient way to improve the vocabulary is reading everyday, remember the words and sentences that we don't and try to use them frequently.

33.  We can pay attention to the words whose appearing frequency is frequently and we can use the words well.

34.  Thereby, we must use them frequently, otherwise we will forget it quickly even though we memorize them firmly now.

35.  More frequently, we remember things by linking them with other things.

36.  Get a library card and use it frequently, because the more you read , the more words you will be exposed to.

37.  When a word is popular and frequently used, it appears many times in articles, reports, books or news.

38.  If a word is used not so frequently, it will not show up so much time.

39.  So by no means can you master a language frequently when you try to learn it by translating and memorizing words.

40.  As mentioned above, the best way to learn a language is to use it as frequently as possible.