counterweight 配重
catapult 抛石机
siege engine 攻城器械
projectile 弹丸
medieval warfare 中世纪战争
ballista 弩炮
trebuchet launch 投石机发射
stone shot 石弹
1. The army used a trebuchet to launch stones over the castle walls.
军队使用投石机将石头抛过城堡城墙。
2. Visitors to the museum could operate a small model trebuchet.
博物馆的参观者可以操作一个小型投石机模型。
3. The trebuchet was more powerful than earlier catapults.
投石机比早期的抛石机威力更大。
A: How did they break the city wall?
A：他们是如何攻破城墙的？
B: They used a giant trebuchet to destroy the gate.
B：他们使用一个巨大的投石机摧毁了大门。
1) 指中世纪的一种重型攻城投石机。
2) 在历史爱好者中泛指类似的杠杆投射装置。
3) 偶尔在比喻中用于形容巨大且笨重的发射力量。
1. 投石机（中世纪攻城武器）
e.g.
The trebuchet hurled a large boulder.
投石机抛出了一块大巨石。
noun
1. A siege engine used in the Middle Ages that used a sling to hurl large rocks or other objects by means of a counterweight and a long wooden arm.
Synonym: catapult, mangonel