Steve Sinclair, head of the company, said, "We have to build something that helps you when you need it and stays off when you don't need it."

公司负责人史蒂夫·辛克莱说：“我们必须制造一些东西，在你需要它的时候提供帮助，不需要它的时候则关闭。”

youdao

Only ask for help when you need it.

只在需要帮助的时候才去寻求帮助。

youdao

There are environmental benefits, too: renting a car when you need it, rather than owning one, means fewer cars are required and fewer resources must be devoted to making them.

还有环境方面的好处：在需要的时候租一辆车，而不是购买一辆，意味着汽车的需求量更少，用于制造汽车的资源也更少。

youdao

"When you put that all together it suggest that we are going to need something like 50 percent more, perhaps 100 percent more, food from our existing land and that is a very significant challenge and we believe we need to be thinking seriously about that right away,"

VOA: standard.2009.10.21

So, when in doubt, if you're having some weird character issue, odds are you need to escape it in some way.

如果你有拿不准的字符,可能就要用到转义字符了。

哈佛公开课 - 计算机科学课程节选

All right. What do you do when you've found the bug and you need to fix it?

好了，当你发现错误并修改它们的时候,你该怎么做？记住一个古老的法则？

麻省理工公开课 - 计算机科学及编程导论课程节选

For instance, you should always be able to get information based on when you need it.

CNN: Cyborg anthropologist: We can all be superhuman

The contact "may do the same for you when you need it, " she says.

WSJ: Keep Networking on the Job

The idea behind intent-based personalization is that you get what you need when you need it.

FORBES: Making Sense Of Online Personalization And Privacy