1. (活动或状态的)恢复，重新开始，复兴
    If there is a renewal of an activity or a situation, it starts again.

    e.g. They will discuss the possible renewal of diplomatic relations...
           他们将讨论恢复外交关系的可能性。
    e.g. Is he really considering a renewal of hostilities at this stage?
           他真的在考虑在这个阶段恢复敌对状态吗？

2. (执照、合同等的)续签，延期
    The renewal of a document such as a licence or a contract is an official increase in the period of time for which it remains valid.

    e.g. His contract came up for renewal...
           他的合同该续签了。
    e.g. The premium should be received in this office within fourteen days of the renewal date.
           保险费用需在14天的续约期内交到此办公室。

3. 恢复;更新;再生;重建
    Renewal of something lost, dead, or destroyed is the process of it growing again or being replaced.

    e.g. ...urban renewal and regeneration...
           城市改造和重建
    e.g. Now it is spring, a time of renewal.
           现在是春天，万物重生的季节。