Crystals
n. 石英晶体；晶体（crystal的复数形式）
🗣️ 情景例句
Sir, everything now is offered with a great discount.
先生，所有的东西都在打很大的折扣。
Shall I come by early to help you get ready?
我提早一点来，帮忙准备宴会好吗？
The temperature drops to -- 30 o and very few people attempt to cross the Pass.
气温下降到零下30度，试图跨越山口的人寥寥无几。