gone overboard

• v. 从船上跌下(不加判断)

gone overboard的用法和样例：

例句

1. My uncle has been acting very strangely; the family think he may have gone overboard.
   我叔叔近来行为十分古怪，家人认为他可能精神失常了。
2. Mary has gone overboard for some new Eastern religion.
   玛丽现已迷上一种新的东方宗教。
3. "Why has the ship stopped?" "I think somebody must have gone overboard."
   "船为什么停了？""我想准是有人落水了。"