It is utterly confusing to me that people do not recognize this, despite the fact that pretty much anyone who has been a student can tell the difference between their best and worst teachers.
2016年12月四级真题(第三套)阅读 Section C
英语六级真题
The open-data shift poses a confusing problem for junior researchers.
2017年12月六级真题(第二套)阅读 Section B
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
令人困惑的;费解的;混乱的
Something that is confusing makes it difficult for people to know exactly what is happening or what to do.