19世纪时，科曼切罗商人经常在德克萨斯和新墨西哥之间进行贸易活动。

In the 19th century, ___Comancheros often conducted trade between Texas and New Mexico.

19世纪时，这些走私者被称为科曼切罗人，专门在边境地区进行非法交易。

In the 19th century, these smugglers were known as ___Comancheros, specializing in illegal trade along the border.