preclude

1. V-T If something precludes an event or action, it prevents the event or action from happening. 阻止 (某事件或行動發生)[正式]

At 84, John feels his age precludes too much travel. 在84嵗時，約翰感覺到他的年齡不允許他作太多的旅行。

2. V-T If something precludes you from doing something or going somewhere, it prevents you from doing it or going there. 阻止 (某人做某事或去某地)[正式]

A constitutional amendment precludes any president from serving more than two terms. 憲法的一項脩訂條款槼定任何縂統不得連任兩屆以上。