Definition
- B2
to avoid approaching something or to stop someone or something from crossing a certain point
（使）遠離；阻止…通過
We need to keep that dog back, or it will run into the street.
我們需要讓那隻狗遠離，否則它會跑到街上。
The guard kept everyone back at the entrance.
警衛在入口處阻止了所有人。
In an emergency, make sure to keep the children back from the flames.
在緊急情況下，一定要讓孩子們遠離火焰。