Hfa
abbr. hard factory automation 工厂自动化
🗣️ 情景例句
Farming is a hard way to make a dollor.
农业很难赚钱。
I have great difficulty in understanding him.
我觉得很难理解他。
Every morning, he left home dressed in a smart black suit.
每天早晨，他穿上一身漂亮的黑色西装离家上班，