Shields
n. 盾, 防卫物（shield的复数形式）
🗣️ 情景例句
Guess who I ran into today?
你猜我今天碰见谁啦？
We all know each other pretty well.
我们都非常了解对方。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）