What’s worse, some drivers do not think it vital to obey traffi c rules.
更糟糕的是，一些司机不认为遵守交通规则是极为重要的。
of vital importance(= very important)
至关重要
Consideration for other people is vital to all of us.
对我们所有人来说，体谅他人至关重要。
If the injuries are second or third degree burns, it is vital to get the victim to the doctor or hospital at once.
如果是二级或三级烧伤，那么立刻带伤者去看医生或者去医院是性命攸关的事。