17. Decimate
What you think it means: To destroy or annihilate
你以为单词的含义是：毁坏或击败。
What it really means: To destroy ten percent.
单词的真正含义是：10%毁坏。
This one is really goofy and one day this won’t be true. For the time being, decimate actually means removing only ten percent of something. If you know a little bit about words it’s not difficult to figure out. The prefix “dec” means ten. However, the traditional definition of this word is antiquated and it’ll probably be changed eventually. Until then, it’s technically correct to use a word like exterminate or annihilate instead.
这个单词有点别扭，或许以后就没人用了。不过现在而言，decimate是指“只抽取某事物的10%”。如果你稍微了解一点英语构词法的话，这就不难理解了。它的前缀“dec”就是“十”的意思。不过，这个单词的传统定义比较古旧，估计以后会有所改变。但在那之前，最好还是使用exterminate(铲除)或annihilate(歼灭)替代吧。