Ferroferrite
纯铁, 纯铁体
🗣️ 情景例句
They defrauded the bank of $200,000.
他们从银行骗了20万美元。
Do you have a ball point pen?
你有圆珠笔吗？
decided to take some presents to a children's hospital.
盖茨决定送些礼物给儿童医院。