1. 重建；重修
    When people rebuild something such as a building or a city, they build it again after it has been damaged or destroyed.

    e.g. They say they will stay to rebuild their homes rather than retreat to refugee camps...
           他们说他们将留下重建家园而不是躲到难民营里。
    e.g. The castle was rebuilt by his great grandson in 1859.
           城堡在1859年由他的曾孙重建。

2. 重建，重组，复原（机构、制度或生活的某些方面）
    When people rebuild something such as an institution, a system, or an aspect of their lives, they take action to bring it back to its previous condition.

    e.g. Everyone would have to work hard together to rebuild the economy...
           所有人都应该一起努力以重建经济。
    e.g. Jane began to rebuild her social life which had been non-existent since her marriage...
           简开始重新建立自己自结婚以来便陷于沉寂的社交生活。

3. 复原，修复（身体某一部分）
    If doctors rebuild part of someone's body that has been damaged, they operate on that person to make them well again.

rebuild的解释

    e.g. Two weeks later, surgeons carried out the operation to rebuild his face.
           两周后，外科医生实施了手术以复原他的面部。