import quota短语⁶⁹⁶⁷⁵ 基本例句 输入限额 Tariff barriers, import quota and subsidies are the measures most in use for one country to protect its domestic market and help national businesses withstand the competition of foreign competitors. 关税、配额与补贴是一个国家用来保护国内市场、帮助国内厂商抵御国外对手竞争的常用措施。 cnki