1. He was permitted to go abroad with the proviso that he should return at the end of two years.
    他被允许出国的条件是两年后必须回来。

1.

1. 条件：诺齐克认为,只要人们满足一个洛克式的附带条件(proviso),也即在占有时没有令得其他人的情况变得更坏,这种占有便是公正的. 一个人如何有权拥有本来属于别人的东西呢?这是有关转让的公正原则(the principle of justice in transfer)的问题.

1. 限制性条件；附文；（附带）条件；但书
    A proviso is a condition in an agreement. You agree to do something if this condition is fulfilled.

    e.g. I told Norman I would invest in his venture as long as he agreed to one proviso...
           我告诉诺曼只要他答应一个附带条件，我就会为他的项目投资。
    e.g. Okay, with the proviso that Jane agrees, I accept.
           好，如果简答应，我就接受。

1. a stipulated condition

    e.g. he accepted subject to one provision

    Synonym: provision