Ferrous acid
[化] 铁酸
🧩 词语组成解析
🗣️ 情景例句
why you have so many problems with math.
为什么你在数学方面有那么多问题。
You'll know our products better after this visit.
参观后您会对我们的产品有更深的了解。
Right from the start there was trouble with the Hubble.
从最开始哈勃望远镜就有问题。