我们离开公路，又一次在山坡上颠簸行驶。

We left the road, and again bumped over the mountainside.

《柯林斯英汉双解大词典》

他已把他的政治前途赌在了一次选举获胜上。

He has staked his political future on an election victory.

《柯林斯英汉双解大词典》

我听他在那次晚餐上做了一次很有说服力的演说。

I heard him make a very eloquent speech at that dinner.

《柯林斯英汉双解大词典》

So now, the enzyme is locked up with being built, and the penicillin has effectively killed the bacteria.

所以这是我第一次感受到,我想在单个原子的层面上思考这些分子,所以这时我的专业转到了化学方向。

麻省理工公开课 - 化学原理课程节选

It ultimately evaluates that line of code but just once the stuff inside the curly braces, but the semicolon on the end, essentially has the effect of this.

它最终执行了那行代码,但是只有一次，当那个东西在花括号里，分号放在后面，本质上影响了这个循环。

哈佛公开课 - 计算机科学课程节选

And the claim is that when you choose this, in order to justify your decision, you denigrate the one you didn't choose.

对这个行为的解释是，当你选这一粒时，为了表明你的选择是正确的，你会贬低第一次没选上的那粒。

耶鲁公开课 - 心理学导论课程节选