在之前的几次飞行中，就察觉到了机身有些摇晃。

Some oscillation of the fuselage had been noticed on early flights.

《柯林斯英汉双解大词典》

在之前的几年中，我曾经有一次拿到99%，还有一次是100%。

In previous years, I earned a 99% and a 100%.

youdao

在之前的研究中，猴子们得到了第三种选择，使他们可以继续进行新的试验。

As in a previous study, the monkeys were given a third choice that would allow them to pass on to a new trial.

youdao

Let me tell you two stories that might-- well, look, before I tell you the stories here's the other side.

让我告诉你们两个故事-,在我讲故事之前,先讲下另一面。

耶鲁公开课 - 死亡课程节选

You might have thought before we started talking about molecular orbital theory that non-bonding was the opposite of bonding, it's not, anti-bonding is the opposite of bonding, and anti-bonding is not non-bonding.

你也许在我们讨论分子轨道之前,就想过非成键时成键的反面，它不是，反键才是成键的反面，反键不是非成键。

麻省理工公开课 - 化学原理课程节选

This is why he's continually placing the imaginative origin of the poem back to the very dawn of time, perhaps even back before if you can imagine such a time -- before the very dawn of time.

这就是为什么弥尔顿总是试图把想象中的这首诗的起源,推至时间开始的时候，甚至更早,-如果你们能想象这样一个时间--在时间开始之前。

耶鲁公开课 - 弥尔顿课程节选