站在文字的疏窗，情暖云水，无语凝噎，缄默成画。

Stand in the text window open, warm cloud water, Speechless choke, a silent.

youdao

这个皮草领子是在成画后一百年之后直接画在原画上面的。

The fur collar was painted over the top of the original painting about a hundred years after the painting was made.

youdao

雪落，梅更艳，辉映成诗，成画，成梦里的一段传奇，成月下书间的一页繁花。

The snow fell, Mei Gengyan, shine into poetry, painting, a legend into the dream of the moon, a page book among the flowers.

youdao

So it's trigonal because we have these three atoms that are bound to the central atom here, and if you picture it, it's actually shaped like a pyramid.

这里三角形是因为,我们有3个原子核中心原子成键，如果你画它，它就是金字塔形的。

麻省理工公开课 - 化学原理课程节选

I want to finish this discussion by including the anti-bonding orbital, and this is a tip for you when you're drawing your molecular orbital diagrams, any time you draw a bonding orbital, there is also an anti-bonding orbital that exists.

我想要以包含反键轨道,来结束这个讨论，告诉你们一个,画分子轨道图的小技巧，任何时候你画一个成键轨道，都会存在一个反键轨道。

麻省理工公开课 - 化学原理课程节选

s plus 1s gives you this oval ellipsoid which is the bonding, and here are the antibonding, and then these are the energy levels that I have been drawing for you.

s和1s上两个电子组成的键合电子成椭圆形,这是成键，这是反键电子，这些是刚刚已经画过的能级,我也给你们画了。

麻省理工公开课 - 固态化学导论课程节选