Shields
n. 盾, 防卫物（shield的复数形式）
🗣️ 情景例句
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
What sort of guarantee do you offer on your product?
你们提供什么样的产品保证呢？
As a reasonable guess, they might, on an average, be 100 light years away.
据合理推算，外星人离我们平均距离也有100光年之远