Mr Smith is above his head中文

Mr Smith is above his head中文

be above one (one’s head) 太高深,无法理解.如：
The book is above the boy.这个孩子读不懂这本书.
The lecture was above the heads of most students.这个讲座大部分学生理解不了.
be above one's head = be over one's head
所以意思是Mr Smith无法理解