(of an army or group of people) to move into and take control or possession of a place again

He ended talks and sent troops to reoccupy the region. 他结束会谈，派部队重新占领了这个地区。

to start using or living in a building again

Her house had been declared safe to reoccupy after the floods. 洪水过后，她的房子被宣布为安全，可以重新入住。