translation.en: They used to trade with people pretty far away from where they lived, and so in this case, they were traveling by sea all the way to Mesopotamia, present-day Iraq.
translation.zh: 他们曾跑到离他们居住很远的地方去做交易 在这个例子中，他们跨越海洋 到了两河流域，也就是今天的伊拉克