Redingtonite
水铬镁矾
🗣️ 情景例句
One is as old as one's heart.
心多老人多老。
What's your family name?
你姓什么？
We enjoy staring at them, entranced as they go about their business, unaware (we hope) of our presence.
我们喜欢入迷地看它们做事，它们不知道（但愿如此）我们就在它们身边。