Polyiron
多晶形铁, 树脂羰基铁粉
🗣️ 情景例句
I'm wiped out by the time I get off work.
下班时，我都累趴下了。
She's such a pain in the neck.
她是个如此讨厌的人。
gradually, and often quite swiftly,
那么渐渐地，往往也是很顺利地，