用作不及物动词 ▲S+～(+A) Idle houses deteriorate.闲置不用的房子会渗漏衰败。 Relations between the superpowers have deteriorated sharply in recent weeks.在最近几周超级大国间的关系急剧恶化
［同义词］ degenerate, regress ［反义词］ improve, restore
