decimate
v[Tn]
(a) kill or destroy a large part of (sth) 杀死或毁坏(某物)之大部
Disease has decimated the population. 疾病使大部分人死亡.
(b) (infml 口) reduce (sth) considerably 相当程度地减少、 降低(某事物)
Student numbers have been decimated by cuts in grants. 助学金削减後, 学生人数大大减少.
On our way home that night I looked down and saw that the necklace was not around my neck any more. I told Pierre. We rushed back to the palace and looked for it.We asked everyone there if they had found a necklace, but without luck. We couldn't find it;