首先，词典能帮助我们确切理解词义，通过查词典，可以知道某个单词的正确读音，词性，搭配和多种解释，以

First of all, the dictionary can help us understand exactly meaning, through the dictionary, you can know the correct pronunciation of a word, the part of speech, collocation and multiple explanation, and its usage in sentences, etc , as well as to students' autonomous learning ability.