Pics
[计] 生产信息控制系统
🗣️ 情景例句
He never speaks unless he is spoken to.
除非别人先对他开口，他从不先开口。
She will be amazed when she wakes up for dinner.
她要是在吃晚餐的时候醒来。必定会大吃一惊。
She is standing in the front of the bus.
她站在公共汽车的前部。