一个老会计说每一件事情所需的时间和每一项开支所需的费用都比事先考虑的要多出两倍来。

An old accounting axiom says that everything will take twice as long and cost twice as much as you expect.

youdao

事先考虑一下你希望能达到的目标，这样你可以和老板共同探讨你的想法，以便在如何成功实现目标方面得到老板的建议。

Think about what you'd like to achieve in advance so you can share this with your boss and get his or her input on how you can be successful.

youdao

毕竟我在设计一个计算机程序，所以需要事先考虑它的实现。

I am, after all, designing a computer program, so I need to look forward toward implementation.

youdao

We don't have to make up our minds in advance whether it was a real world or a completely fantastic one, but at least let's see if we can describe what world it looks like.

我们不必事先考虑这是一个,真实的抑或虚幻的世界,但至少要知道我们能否描述这个世界

耶鲁公开课 - 古希腊历史简介课程节选