trebuchet

1. Last game he had brought her out too soon and lost her to a trebuchet.
   上次游戏他太早放她出来结果把她输给了一个投石机。
2. The trebuchet is a long distance heavy offensive and defensive weapon in the ancient China.
   抛石机是我国古代一种远程重型战具，应用于攻击防守战中。
3. Trebuchet had deep affect on Chinese ancient military history and technology history.
   抛石机在我国古代军事史与技术史上都产生了深远影响。

noun

1. an engine that provided medieval artillery used during sieges

   Synonym:    catapultarbalestarbalistballistabricolemangonelonagertrebucket