"I'm an optimist, and I think if you're a pessimist that's just an excuse for inaction."

VOA: standard.2010.02.24

Let me just check that, yes, no, excuse me.

让我想想，哦，不好意思。

麻省理工公开课 - 固态化学导论课程节选

Yeah, it's just a good excuse to get people together and hang out.

是的，今天把人们聚在一起出来逛逛是件好事。

一起长大的朋友 - SpeakingMax英语口语达人

Allowing it to drag on, as other parts of the process already have, would just provide another excuse to push back the poll date.

VOA: standard.2009.09.29

So, that's going to be important later when we get to bonding, but just take note of it now, we have two nodes, or we have two lobes, excuse me, each with a separate phase.

这等到我们之后讲到成键时是非常重要的，现在先要记住，我们有两个节点，不好意思，是两个叶瓣，每个都是不同的相位。

麻省理工公开课 - 化学原理课程节选

He was killed on April 1st,1865,at the Battle of Five Oaks excuse me, at Five Forks, just west of Richmond, the last major engagement of the Civil War.

他最终死于1865年4月1日的五橡树战役,不好意思,是五岔口战役,就在里士满的西面,内战最后一场主要的会战

耶鲁公开课 - 美国内战与重建课程节选

We can look at the 2 p, which should have one radial node, and we just figured it out for the, excuse me, 3d for the 3 p has one radial node, and for the 3 d here, we should have zero radial nodes, we just calculated that.

我们看2p，它有一个节点，我们已经知道对于，不好意思，是3p有一个节点，对于，它应该没有径向节点，我们刚刚算过这个。

麻省理工公开课 - 化学原理课程节选