根据汉语意思完成句子.

问题描述:

根据汉语意思完成句子.
没有字典的帮助,他不会读这个单词。
He is ______ ______ read the word with the help of a dictionary.
这俩空填什么?not know?

没有字典的帮助,他不会读这个单词.
He is (unable to) read the word with the help of a dictionary.
be unable to do,不能做某事.相当于be not able to do.