As a young man,he has to fack kinds of _______(困难) by himself.
问题描述：
As a young man,he has to fack kinds of _______(困难) by himself.
答
Difficulty,strain,laboriousness,strenuousness.都可以,fack应该打错了,没有这个单词.手机码字,抱歉，是face，打错了。。。但书后答案是difficulties,我糊涂了==我忽略了kinds那个S，sorry