This is the 2641st most frequent Chinese word.
难度
"Difficulty level."
Here, '难度' refers to the level of difficulty of a task, specifically an exam in this case.
这个考试的难度太大了，我可能需要更多时间准备。
The level of difficulty of this exam is too high; I might need more time to prepare.
'难度' is used here to express the challenge or difficulty associated with a particular endeavor, like learning a language.
学习一门新语言的难度在于坚持不懈的练习。
The challenge of learning a new language lies in continuous practice.
In this sentence, '难度' indicates the extent of difficulty suitable for a specific group of people, such as beginners.