否则 (fǒu zé): さもなければ; もしでなければ; または（そうでなければ）; さもなければ; もしでなければ; または

You must leave now, otherwise you will be late.

Please be quiet, otherwise no one can concentrate.

Hurry up, otherwise we won't catch the train.

You have to make an appointment first, otherwise you can't go in.