Mitchellite
镁铬铁矿
🗣️ 情景例句
We can learn a lot by asking.
我们到处问问会学到不少东西。
The sacrifice of time is the costliest of all sacrifices.
损失时间是一切损失中代价最大的损失。
so it was easier for the detective to watch her.
因此，侦探比较容易监视她。