They were cut off from the West in 1948 when their government closed that border crossing.

当他们的政府于1948年封锁了那个那个边境通道以后，他们与西方国家的联系就被切断了。

《柯林斯英汉双解大词典》

Try to avoid crossing your arms over your chest and looking closed off.

尽量避免双臂交叉在胸前，看起来很封闭。

youdao

The sole pedestrian crossing from Israel into Gaza, at Erez, has remained closed to journalists since Israel's bombing campaign began on Saturday.

自从周六以色列开始进行空袭，从以色列到加沙唯一的步行通道已经在埃雷兹处对记者封闭了。

youdao

Egypt had previously kept the crossing closed to cargo, while Israel also maintained heavy restrictions.

BBC: Gaza construction convoy crosses from Egypt

Canadian authorities closed the border crossing immediately after the shooting.

CNN: STORY HIGHLIGHTS

The M48 old Severn bridge and Second Severn crossing were closed due to ice, but have since reopened.

BBC: Power restored after heavy snow