S1: I know. Their responsibility was so suppress an all-too-prevalent practice of white traders using alcohol as currency for buffalo hides.

我知道。当时白人商人用酒来交换水牛皮的行为非常普遍，骑警的责任就是制止这种行为。

youdao

In Laos, one of the poorest countries in Southeast Asia, domesticated water buffalo are used for their meat, hides, and milk, and also for plowing and transportation.

在老挝这个东南亚最穷困之一的国家，家养水牛除了其肉、皮、奶可用外，也可将其用于耕作和运输。

youdao