Stratas
(strata 的复数) pl. 层, 地层, 阶层\\n[医] 层
🗣️ 情景例句
Pull the car over to the side of the road.
把车停到路边。
In secondary school, children study history and geography.
中学的小孩会读历史和地理。
When will it be ready?
什么时候能准备好？