Ferrooxidant
铁氧化剂
🗣️ 情景例句
What does your father do?
你父亲从事什么职业？
I told him to come in for a few minutes.
我告诉他进来等几分钟。
What's up? What's up? someone called.
“什么事？什么事？”有人叫着。