It's difficult for the little boy to l_____ the heavy box.就素那种知道第一个字母填整个单词滴······还有,初中水平的就行,别太高深······

问题描述:

It's difficult for the little boy to l_____ the heavy box.
就素那种知道第一个字母填整个单词滴······
还有,初中水平的就行,别太高深······