scutum

例句：

1. 1.The scutum of the armor is made from a thick metal plate.
   这件铠甲的盾板是用厚重的金属制成的。
2. 2.The knight's scutum was decorated with intricate designs.
   骑士的盾板上装饰着复杂的图案。
3. 3. The ancient warriors used scutum as their primary defense against attackers.
   古代战士用盾板作为他们的主要防御武器来抵御攻击者。