So platina is like a diminutive of silver, but we now know that platinum is far superior to silver It is far more noble. It has a higher melting point, a higher chemical inertness, a fantastic metal.

所以普拉塔就像一个小小的银，但我们现在知道普拉塔比银要好很多,更为珍贵，熔点更高，化学惰性更高，是一种非常不可思议的金属。

麻省理工公开课 - 固态化学导论课程节选

So we say aluminium, you know, the metal, the foil, they say aluminum.

所以我们说aluminium，一种金属，锡箔，他们说aluminum。

美式英语和英式英语 - SpeakingMax英语口语达人

Liquid metal. Solid metals melt and become a liquid metal like mercury.

液态金属，固态金属熔化,形成一种像水银一样的液态金属。

麻省理工公开课 - 固态化学导论课程节选

that's one way to think about it, and there's also another way, and this is the way that your book presents it. If you, in fact, have two of the same atom right next to each other, let's say you have a crystal, or let's say you're talking about a metal, what you can do is just look at the distance between the two nuclei, and split that in 1/2, and take the atomic radius that way.

这只是一种定义的思路，另外还有其它方法，也就是你们课本上的方法，如果你，事实上，有两个相同的原子彼此靠在一起，比如说你有一个晶体，或者说你讨论的是一个金属，你所要做的就是,看看这两个原子核之间的距离，然后将距离除以二，就得到了这个原子的半径。

麻省理工公开课 - 化学原理课程节选

An American metal.

一种美洲金属。

麻省理工公开课 - 固态化学导论课程节选