由于缺乏维护，这座桥的状况在过去十年里明显恶化了。

The condition of the bridge has ___deteriorated noticeably over the past decade due to lack of maintenance.

自从生病以来，她的记忆力明显衰退了。

Her memory has noticeably ___deteriorated since she got ill.

由于缺乏沟通，他们的友谊逐渐恶化了。

Their friendship ___deteriorated due to lack of communication.