customs

海关常作单数动词

We were held up at customs for almost two hours.

我们在海关被耽误了将近两个小时。

关税

You may have to pay customs on goods bought abroad.

在国外买的商品可能需要缴关税。

风俗、习俗custom 的复数

Local wedding customs vary a lot from village to village.

当地的婚礼习俗各村之间差异很大。

海关的仅用于名词前

A customs officer asked me to open my suitcase.

一名海关人员要我打开行李箱。