So doctors must use stronger, "second line" drugs when the first ones fail.

VOA: special.2009.03.25

So you may take this course ultimately via pass-fail or letter grade and I am more than happy to chat with you about the implications and to sign any paper work such as the stack here that you might need.

你可能希望这门课采用及格-不及格分制或者分数制,我很乐意跟你聊下,两个打分制各自的含义,也可以帮你在这里签到。

哈佛公开课 - 计算机科学课程节选

I don't want you to get all frustrated and fail to show what you know, so here are a couple of tips.

我不希望你受到挫折,由于失败而不能体现你所知道的，因此这儿有一些小提示。

麻省理工公开课 - 固态化学导论课程节选

Herein fail not,so help you God.

VOA: special.2009.11.14

And she gets nothing if they fail to coordinate and so on and so forth.

如果协调失败了她就没有收益

耶鲁公开课 - 博弈论课程节选

And,if they fail to do so within six months, it says the UN Security Council should turn the matter over to the International Criminal Court Prosecutor.

VOA: standard.2009.10.03

So if you just did carelessly, you'd completely fail the president's day.

如果不认真安排日程，你可能就完全搞砸了总统的工作。

普林斯顿公开课 - 国际座谈会课程节选

He said it would take longer to convince Afghans that the insurgency is going to fail, because they have been disappointed by the international military effort so far and because many view their government as inconsequential or corrupt.

VOA: standard.2009.12.09

And if we also ask the positive question, then some new possibilities,new quests open up, just like they did for the researchers when they started to ask ?" no longer "why do so many individuals fail?"

如果我们也问积极问题，那就会出现新的可能性，新的探索，就像他们对研究学者所问的一样,不再问“为什么有这么多人堕落“

哈佛公开课 - 幸福课课程节选

I know that may seem like a surprising thing to say when I've just sort of gone on my little gleeful amount about how I'm going to fail all of you, but it's worth my saying you guys are so smart.

我知道这说起来很奇怪,当我有些幸灾乐祸的说,关于我怎么让你们全部不合格，但是这值得我说你们聪明非常。

耶鲁公开课 - 死亡课程节选

So, don't fail to enter.

因此别不来参加。

麻省理工公开课 - 固态化学导论课程节选

He tried to intimidate us too much with his promise of impossible grading so that everyone took the class credit/D/fail, when we all probably ended up with As or Bs.

他经常试着吓唬我们,通过他承诺的不可能的分数等级,所以每个人都虔诚的来上课/D/不及格，当我们几乎都已As或Bs结束时。

耶鲁公开课 - 死亡课程节选