Pdn
[计] 公共数据网络
🗣️ 情景例句
He cancelled his appointment.
他取消约会了。
For my math requirements, I'll be taking algebra, calculus, and trig.
数学的必修学分预定选代数、微积分、三角法。
In despair, I asked her whether she was enjoying her dinner.
失望之中我问她饭是否吃得满意。