Hurry up or else you'll be late.

快点，否则你就要迟到了。

《牛津词典》

You are either a total genius or else you must be totally crazy.

你要么是个纯粹的天才，要不然你准是完全疯了。

《柯林斯英汉双解大词典》

This time we really need to succeed or else people will start giving us funny looks.

这次我们真地得要成功，否则人们会开始用奇怪的眼光看我们。

《柯林斯英汉双解大词典》

Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

So in sections where you have the opportunity to work in smaller environments with one of the teaching fellows, in office hours we have an opportunity to work one on one, hands-on in the computer lab or else we're on campus and really get personalized attention when it comes to diving into these problems.

因此在分组后,你们有机会与教员们一起在小房间里工作，在上机时间内我们有机会一对一授课，在实验室内亲身实践,不然的话我们在校园里探讨问题,会被很多人围观的。

哈佛公开课 - 计算机科学课程节选

or else I wouldn't feel complete.

不然，我会觉得人生不完整。

纽约的人们 - SpeakingMax英语口语达人

ObamaCare requires large employers to offer health insurance to workers (or else pay a penalty).

FORBES: Big Brother Has A New Face, And It's Your Boss

We are all in this together (or should be), or else we should all pull out.

ECONOMIST: Lessons for Afghanistan

Nobody held a gun to your head and said you MUST use Google or else.

FORBES: Assessing Winners and Losers in Google's Worldwide Antitrust Battles