They exchanged gifts with the old chief, haggling with his plenipotentiaries over the value of what they were to receive for what they gave, as is customary and proper when one has no ulterior motives.
他们与老酋长交换礼物, 与他的全权讨价还价, 以交换他们所给予的东西的价值, 这是没有别有用心的人的习惯和适当的做法。