decimate

1. V-T To decimate something such as a group of people or animals means to destroy a very large number of them. 大量燬滅

The pollution could decimate the river's thriving population of kingfishers. 汙染可能大量燬滅在這條河茁壯成長(zhǎng)的翠鳥(niǎo)群。

2. V-T To decimate a system or organization means to reduce its size and effectiveness greatly. 嚴(yán)重削弱

...a recession which decimated the nation's manufacturing industry. …嚴(yán)重削弱了該國(guó)制造業(yè)的一次經(jīng)濟(jì)衰退。