Hfa
abbr. hard factory automation 工厂自动化
🗣️ 情景例句
He cancelled his appointment.
他取消约会了。
An evening red and a morning grey, is a sign of a fair day.
晚霞红如火，晓色青如灰，定是晴朗天。
Can his machine fly?
他的机器能飞吗？