We would hear their caravans approaching our neighborhood, the mewling of their sheep, the "baaing" of their goats.
我们会听到他们的商队接近我们的社区的声音,绵羊咪咪,山羊咩咩。
Trade was the mainstay of the urban economy in the Middle East, as caravans negotiated the surrounding desert, restricted only by access to water and by mountain ranges.