通常烤肉或牛排的时候，为使它中心的部位能变成粉红色，其它部位的肉都会被过分的烘烤。

Aiming to cook a roast or steak until it's pink at the center, we routinely overcook the rest of it.

youdao

它位于中心。

It stands at the centre.

youdao

因为我们有我的红色激光笔，我们也会尝试红色激光笔，它的中心波长是 700 纳米。

Since we have my red laser pointer, we will also try with the red laser pointer, which is centered at wavelength of 700 nanometers.

youdao

It is, in other words, a center which is outside the structure: "a center which is not a center," and we'll come back to that in a minute.

换句话说，它是结构之外的中心：,“不是中心的中心“,我们马上会再谈到。

耶鲁公开课 - 文学理论导论课程节选

then what you have is a carbon in the middle with three hydrogens around it, and then it can only be bonded to one other thing.

那么你就会有一个碳原子在中心,三个氢原子围绕着它，那么它只能再和一个原子成键。

麻省理工公开课 - 化学原理课程节选

850s Chicago, which was already by the 1850s the railroad capital of North America?

五十年代的芝加哥,它在50年代已经成为了北美铁路网中心

耶鲁公开课 - 美国内战与重建课程节选