①You use otherwise after stating a situation or fact, in order to say what the result or consequence would be if this situation or fact was not the case.【adv.否则；不然】
I'm lucky that I'm interested in school work, otherwise I'd go mad.
②You use otherwise before stating the general condition or quality of something, when you are also mentioning an exception to this general condition or quality.【adv.除此以外；在其他方面】
The decorations for the games have lent a splash of colour to an otherwise drab city.
③You use otherwise to refer in a general way to actions or situations that are very different from, or the opposite to, your main statement.【adv.与之不同地；相反地】
All photographs are by the author unless otherwise stated.
④You use otherwise to indicate that other ways of doing something are possible in addition to the way already mentioned.【adv.以其他方式；用别的方法】
The studio could punish its players by keeping them out of work, and otherwise controlling their lives.
“otherwise”的意思主要就是这上面四个，除此之外，还有一个很常见的短语：and/or otherwise 及其他；或相反；或其反面 【You use or otherwise or and otherwise to mention something that is not the thing just referred to or is the opposite of that thing.】
He didn't want company, talkative or otherwise .
[scode type="blue"]barge in
If you barge in or barge in on someone, you rudely interrupt what they are doing or saying.
①I'm sorry to barge in like this, but I have a problem I hope you can solve.
②Sheldon, you cannot just barge in here like that! Right.
③You have no right to barge in here after five years.
Matt Haig的新书 The Midnight Library 也出现了这个表达：