Ferroferric oxide
[化] 四氧化三铁; 磁性氧化铁
🧩 词语组成解析
亚铁正铁(根)
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
But first, I think we should take a moment
不过首先 我想我们应该用一两分钟
Pick up the receiver and deposit a coin in the slot.
拿起听筒和放一个硬币到投币口。
Mary has written ten letters today.
马力今天写了十封信。