to close off
[phrase form: close]
01
封闭, 封锁
to restrict or block access to a particular area or passage
例子
Emergency crews decided to close off the accident site to the public while they conducted their investigation.
紧急救援人员决定在调查期间对公众封锁事故现场。
02
封闭自己, 隔绝自己
to intentionally avoid engaging in new experiences or connections
例子
The introverted student may close off during social events to recharge in solitude.
内向的学生可能会在社交活动中封闭自己，以便在独处时充电。
