要简洁地讲清楚原因,--------（查找）the new wors in dictionary if you don'

求简洁地讲清楚原因--------（查找）the new wors in dictionary if you don't You'd better look up the new word in a dictionary(if)you don if you don't know a new word,please look it up (查找）in a d___ you'd better look it u------ in the dictionary if you don't If you don't know the word,you can______a dictionary If you look up each word in the dictionary, if you don't know a word ,you can __ it __ in a dictionary . If you don't know a word,you can ＿＿in a dictionary. If you don't know the words,you can _____in a dictionary. if the dictionary（）you ,put it back where it () of you has a dictionary,so you can look up the new words in The word is new to us.You’d better ______ in the dictionary.