phrase
B2
used to say what will happen if something else does not happen
We need to leave now, or else we'll be late.
我们现在需要离开，否则我们会迟到。
C2
used to compare two different things or situations
You can stay here, or else you can come with us.
你可以留在这里，或者你可以和我们一起走。
translation
否则, 或者