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。

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。

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。