(politics政治)a system that limits the number of immigrants who may officially enter a country each year, or that states how many should be allowed to enter
a quota system for migrants within the EU欧盟内部移民配额制度
a policy of either limiting the number of students, employees, etc. of minority groups in a school or business, or of requiring a certain number or percentage to be hired or admitted
The school had a quota system in place for many years.学校实行了多年配额制。
(economics经济学)a system that limits the amount of particular goods that can enter or leave a country
They allow sugar imports based on a quota system.他们允许根据配额制度进口食糖。