tariff

Compared meaning: a tax charged on imported goods (noun).

比较义项：关税（名词）。

• duty

  Duty is the actual tax a traveller or importer must pay on goods, often paired with "customs" (customs duty) and used in the fixed phrase "duty-free".

  duty 指旅客或进口商必须缴纳的关税本身，常与“customs”搭配（customs duty），并出现在“duty-free（免税）”这样的固定搭配中。

  He forgot to declare the watch, so customs charged him duty.

  他忘了申报那块手表，结果海关向他征收了关税。

• tariff 本词

  Tariff usually refers to the tax rate or trade policy a government sets on imports, and is the word used when discussing trade disputes or price rises on foreign goods.

  tariff 通常指政府针对进口商品设定的税率或贸易政策，常用于讨论贸易争端或外国商品涨价等话题。

  Washington raised tariffs on Chinese solar panels last year.

  华盛顿去年提高了对中国太阳能板征收的关税。

Duty and tariff both can mean a tax on imports. Duty is the actual tax a traveler pays, often paired with 'customs' and seen in 'duty-free.' Tariff means the tax rate or policy a government sets, common in trade-dispute news. Not compared: duty (obligation).

duty 和 tariff 在“关税”这个意义上很接近，但 duty 指旅客或进口商实际缴纳的税款，常与“customs”搭配（customs duty），并出现在“duty-free”这样的固定说法里；tariff 更强调政府设定的税率或贸易政策，常出现在贸易争端、关税上调等新闻语境中。这里不比较 duty 的“职责，义务”这一常见义项。