They have a quarantine house where they would put people who were travelers arriving there, because walls kept out plagues.

杜布罗夫尼克有一个检疫处,想进城的人若被查出生病,将会在此被隔离

耶鲁公开课 - 欧洲文明课程节选

It's Goodbody that they're dealing with, although they have ways of--for a proxy and they have ways of finding out who's who.

与他们打交道的是古德巴迪,古德巴迪是代理商而已,而公司有多种方式查出投资者是谁

耶鲁公开课 - 金融市场课程节选

So, if you can't immediately know, and you don't all have periodic tables in front of you, so that's fine, but if you have a periodic table in front of you, you need to be able to count valence electrons, so work on that if it doesn't come naturally to you in terms of figuring that out.

如果你不能马上想到，而且你手上没有周期表，那还好，但如果你面前有一张周期表，那你就得具备从中查出价电子个数的能力，如果你不能自然而然地想到,请在这方面多下点功夫。

麻省理工公开课 - 化学原理课程节选