Ferrofining
铁剂精制
🗣️ 情景例句
I've got to keep my nose to the grindstone to support my family.
我拼命工作养家。
The more a man knows, the more he see his ignorance.
大智若愚。
Annie was born in a poor family, on April 4th, 1866.
1866年4月4日，安妮出生在一个贫苦家庭中。