前者更正式,祥解如下:
prohibit [transitive]
1 [usually passive] to say that an action is illegal or not allowed [= ban,forbid]:
Smoking is strictly prohibited inside the factory.
prohibit somebody from doing something
They are prohibited from revealing details about the candidates.
2 formal to make something impossible or prevent it from happening
forbid
past tense forbade past participle forbidden present participle forbidding [transitive]
1 to tell someone that they are not allowed to do something,or that something is not allowed [≠ permit]
forbid somebody to do something
He was forbidden to leave the house,as a punishment.
forbid somebody from doing something
Women are forbidden from going out without a veil.
strictly/expressly/explicitly etc forbid
The law strictly forbids racial or sexual discrimination.
!It is more usual to say that someone is not allowed to do something,rather than forbidden to do it:I'm not allowed to stay out after midnight.
2 God/Heaven forbid spoken used to emphasize that you hope that something will not happen:
'Supposing I had an accident.' 'God forbid!'
3 formal to make it impossible for someone to do something [= prevent]:
Lack of space forbids listing the names of all those who contributed.