/rɪˈstrɪkʃn/ noun (常作 restrictions) a limiting condition or measure, especially a legal one (尤指法律的)限制，限定，限制规定 制约因素，制约因素； Mutable references have one big restriction: if you have a mutable reference to a value, you can have no other references to that value. （受）限制（状态），（受）约束（状态）；