People who came by land you would be hearing rumblings about down the road from villages that were spread out, but if somebody comes in from the sea on a ship, you may find them there in the morning and you don't know what's what.

陆上来客总伴随着车马隆隆声,沿着途经的村庄一路传来,但是如果有人乘船从海上到来,当他早上来到时你会发现,你对他一无所知

耶鲁公开课 - 古希腊历史简介课程节选

Air traffic used to be everything flew to places local to it but now there's a system of hubs, Chicago O'Hare for instance or Newark where planes fly through.

以前的飞机都是飞往它的所属地,但现在的航空运输是一个由交通枢纽组成的系统，例如飞机会途经芝加哥O'Hare机场或Newark机场。

耶鲁公开课 - 心理学导论课程节选