pay duty

基本解释

Will I have to pay duty on this？
我必须为此纳税吗？
You’ll have to pay duty on this.
你必须为这项物品缴付税金。
The customs may publish the failure of taxpayers to pay duty.
海关可以对纳税义务人欠缴税款的情况予以公告。

Because it is imports that are the gain from trade simply announcing that imports into the US will no longer pay duty would mean that the US has free trade.
FORBES: US And EU Free Trade Negotiations: No, This Is An Appalling Idea, Truly Terrible
And it is why, while we can never compensate you enough for all you have done, we increased pay for active duty service members.
WHITEHOUSE: The White House
Income was largely from local authorities who have a duty to pay for such care for local residents.
FORBES: Southern Cross: Solved