美 [fɔːl ˈɪntə dɪˈkeɪ]
衰败：逐渐从糟糕的状态变得更糟糕：逐渐陷入毁灭的状态。
... out of debt 还清债务 fall into decay 衰落，衰败 in decay 腐朽 ...
损坏，腐烂；衰败
The landlord had let the building fall into decay.
房东不管，房子已经破烂不堪。
Old civilization may fall into decay.
古老的文化可能会渐渐衰落下去。
The old civilization may fall into decay.
古代的文化可能衰落。
Mr Attwood said he had "called in" some developers from the Portrush and Portstewart areas on the north coast who had allowed sites to fall into decay whilst lodging applications for new developments.
Satellite and space expert Dr Stuart Eves stressed the large uncertainties involved in tracking the "decay" of satellite orbits (their slow fall back into the Earth's atmosphere).