lemming
noun /ˈlemɪŋ/
  /ˈlemɪŋ/
 - a small animal like a mouse, that lives in cold northern countries. Sometimes large groups of lemmings migrate (= move from one place to another) in search of food. Many of them die on these journeys and there is a popular belief that lemmings kill themselves by jumping off cliffs.旅鼠(许多人认为旅鼠会从悬崖上跳下自杀) - Lemming-like we rushed into certain disaster.我们像旅鼠一样忙不迭地冲进灾难。 
 词源early 18th cent.: from Norwegian and Danish; related to Old Norse lómundr.
- Lemming-like we rushed into certain disaster.