常见例句用作名词 (n.)During these battles the Song navy employed swift paddle wheel driven naval crafts armed with trebuchet catapults aboard the decks that launched gunpowder bombs.在这一系列海战中，宋朝海军充分发挥明轮船的灵活性，并于其配备可以发射火药弹丸的投石器。 返回 paddle-ship