difficult
这道数学题对我来说很难。
This math problem is ___difficult for me.
学习一门新语言比我想象的要难。
Learning a new language is ___more ___difficult than I thought.
这是今天考试中最难的问题。
This is the ___most ___difficult question on today's test.
我觉得早起很困难。
I find it ___difficult to wake up early.
在嘈杂的房间里学习比在安静的图书馆里学习更难。
Studying in a noisy room is ___more ___difficult than in a quiet library.