This is the 2455th most frequent Chinese word.
开来
"开来" means "to spread out" or "to unfold."
In this sentence, '开来' is used to indicate an action of moving something aside away from another object or area.
他把书拿开来给我看看。
He moved the book aside for me to take a look.
Here, '开来' expresses the act of opening outward, showing the result or effect of the action.
窗户打开来,房间里的空气清新了许多。
The window was opened, and the air in the room became much fresher.
In this context, '开来' denotes a figurative opening or broadening of perspective or understanding.