私家车从什么时候开始可以出武汉？

From which date were private cars allowed to go out of Wuhan?

youdao

我们已经记不清是从什么时候开始在餐桌上使用手机了。

We can't remember clearly when we started to take our mobile phones to a dinner table.

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从什么时候起，拥有更多不再显著增加人类的满足感？

When does having more cease to add noticeably to human satisfaction?

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When we talk about what to eat, how do we get advice on this and where do we look?

当我们讨论到我们该吃些什么的时候,我们应该从哪儿以及如何获得参考建议呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, we're going to start with talking about bonding, and any time we have a chemical bond, basically what we're talking about is having two atoms where the arrangement of their nuclei and their electrons are such that the bonded atoms results in a lower energythan for the separate atoms.

那么，下面我们将从成键开始讲起，无论什么时候我们有一个化学键，基本上我们所讨论的,都是如何安排两个原子的原子核的位置,与电子的位置使得成键的两个原子,最终比分开时的能量更低。

麻省理工公开课 - 化学原理课程节选