印第安人用毛皮和白人商人交易。

The Indians traded furs and skins with white merchants.

youdao

一些白人商人跟他说，你赶紧走吧，有人要来攻击你的药店。

A group of white merchants in the area came to him and said 'You'd better get out. Your pharmacy is going to be attacked.'

youdao

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。

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

youdao