Sideroferrite
木化石中发现的天然铁
🗣️ 情景例句
Sometimes, by buying something cheap now, you will be costing yourself more in the long run.
有时候你花了很少钱买了便宜货，但它日后可能要花掉更多的钱。
Math major
专攻数学
I'm going to the shops.
我到商店去。