求简洁地讲清楚原因--------（查找）the new wors in dictionary if you don't

求简洁地讲清楚原因--------（查找）the new wors in dictionary if you don't if you don't know a new word,please look it up (查找）in a d___ You'd better look up the new word in a dictionary(if)you don 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 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. Please look it up in the dictionary when you don't know the Don't ___________ if you fail in the final exam. why not look up the word in a dictionary( )you don't know it lf you don't know how to look up a word in a dictionary,the