But Warren says the good news comes at a time when researchers are facing a big obstacle - limited funding.

VOA: standard.2010.07.15

Why don't we have you, when the time comes, raise your hand if you're supposed to be representing a one?

为什么让家上来呢，如果你代表1，就举起你的手？

哈佛公开课 - 计算机科学课程节选

We will be getting into that when the time comes.

到时候我们会对此进行深入探讨。

耶鲁公开课 - 文学理论导论课程节选

All of this comes at a time when Poland's confidence in the U.S.is waning.

VOA: standard.2009.10.22

We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.

你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。

麻省理工公开课 - 化学原理课程节选

This latest incident comes at a time when Afghanistan is witnessing its worst violence of the eight-year-long war following the ouster of the Taliban from power in 2001.

VOA: standard.2009.09.12

And I still have that question So that's something that kind of troubles me I had not seen the Afghan National Army as being national as much as I wanna it to be Yeah. Therefore when the time comes they may not do what President Karzai wants them to do?

我始终没搞清楚这个问题,这个问题一直困扰着我,我没有看到过阿富汗国防部队,如我所期待的那样具有民族意识,所以如果在危难时刻,他们有可能不听从卡尔扎伊的指挥？

普林斯顿公开课 - 国际座谈会课程节选

This comes at a time when opinion polls show dropping support among Americans for the military effort in Afghanistan, where Afghan,American and NATO coalition forces together are fighting the Taliban.

VOA: standard.2009.09.04

When the difficult time comes, they will try to survive by themselves.

一旦遇到困境，他们会选择自保。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

The outbreak of swine flu in Mexico comes at a time when the country is already struggling with the effects of the worldwide economic recession and some loss of tourism caused by drug violence in cities like Juarez.

VOA: standard.2009.04.30

He's playing with Freudian slips. Of course, what he's thinking about all the time is the master-slave game, and so here it comes out, when he's talking about his brother's diving: "He's a master diver. You really have to slave away at it."

他在开Freudian滑倒的玩笑，当然，他一直想的是,主人-奴隶的游戏，当谈到他兄弟的潜水时，他提到了：,“他是个跳水能手，你真得埋头苦干拼命练习这个了“

耶鲁公开课 - 1945年后的美国小说课程节选

And I still believe that in Africa we have been going through this kind of pressure for a pretty long time, so I believe that when it comes we can handle it and lift the cup on Friday,".

VOA: standard.2009.10.15

So if you're asking me I want you to know When my time comes Forget the wrong that I've done Help me leave behind some Reasons to be missed Don't resent me And when you're feeling empty Keep me in your memory Leave out all the rest Leave out all the rest Forgetting all the hurt inside You've learned to hide so well Pretending someone else can come And save me from myself I can't be who you are When my time comes Forget the wrong that I've done Help me leave behind some Reasons to be missed Don't resent me And when you're feeling empty Keep me in your memory Leave out all the rest Leave out all the rest Forgetting all the hurt inside You've learned to hide so well Pretending someone else can come And save me from myself I can't be who you are I can't be who you are (SINGING) How can I decide what's right When you're clouding up my mind I can't win your losing fight All the time How can I ever own what's mine When you're always taking sides But you won't take away my pride No, not this time No, not this time How did we get here?

VOA: standard.other