除非的英文：
only if (..., or otherwise ...)
only when
only in the case that
We won't advance unless we change our industrial structure.
除非改变产业结构,否则我们不能向前发展。
Don't knock it unless you can do better.
不要挑挑剔剔，除非你自己能做得更好。
Do not jeer unless you can do better.
除非你能做得更好，否则就不要嘲笑。
The gangster was in deadly earnest about hi threat to burn down the club unless the protection was paid.
这个歹徒一本正经地威胁说要烧毁这个俱乐部，除非向他交付保护费。
Unless someone has a brainwave we'll never solve this problem.
除非谁能灵机一动拿出主意,否则我们永远解决不了这个问题.
Licensor shall not withdraw its approval of the approved samples except on 60 days prior notice to Licensee.
而许可方除非提前60天书面通知接受方,不能撤销其对样品的同意。
The Supreme Court is comprised of nine justices who are appointed to the bench for life, or until voluntary retirement.
最高法院由九名大法官组成，他们都是终身任职制，除非他们自愿退休。
Nothing short of a world war could tear us away from this line.
除非打起世界战争。
When hell freezes over.
除非太阳从西边出来
Lest they act, both will perish.
除非行动，否则死路一条。
adv. 否则；另外；在其他方面
adj. 另外的；其他方面的
It did not canned or otherwise preserved.
它没有装罐或者用其他的方法保藏。
If it is not, it will change, otherwise it won't.
如果不对，就可能变。如果是对的，就变不了。
I think he intends otherwise.
我认为他另有打算。
The accident was a blemish in an otherwise perfect evening.
那个意外是那天晚上唯一美中不足的地方。
It was a sad finale to an otherwise spectacular career.
对于一段一直辉煌的职业生涯来说，这是一个惨淡的收官。
conj. 在…时候；在…之后；一…就；考虑到，既然；虽然，然而
adv. 什么时候，何时；在那时；当时
pron. 什么时侯；何时
n. 时间
Tact is the art of recognizing when to be Big and when not to be little
知道何时应该宽宏大度,何时不应量小器微,是谓练达
Time flies when you are online.
上网的时候时间过得飞快。
When you see him, book!
当他见到他时，迅速离开！
When are the telecastings broadcast?
什么时候播放电视广播？
When to violate guidelines
什么时候打破规则