seal shut, seal off completely
那箱子是封死的嘛
Is that box sealed shut?
— 唐人街探案 (2015)
他们把人都封死了，就像耗子似的！
They’ve trapped everyone inside like rats!
— 死亡录像 (2007)
窗户都被封死了
All the windows have been sealed shut.
— 搏击俱乐部 (1999)
前面是封死的！
The way ahead is blocked off!
— 色‧戒 (2007)