port of entry

名词 port of entry:

1. a port in the United States where customs officials are stationed to oversee the entry and exit of people and merchandise
   同义词：point of entry

1. A period of time during which a vehicle, person, or material suspected of carrying a contagious disease is detained at a port of entry under enforced isolation to prevent disease from entering a country.
   检疫期，隔离期当运输工具、人或材料被怀疑带有传染性疾病，被扣留在港口进行强行隔离的一段期限，以防止疾病传入某个国家