Ferritization
褐铁矿化
🗣️ 情景例句
Nowadays many TV programs need parental guidance.
现在许多电视节目需要在家长指导下观看。
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
Are you doing the football pools, Brain?
布赖恩，你正在下足球赛的赌注吗？