Transonics
跨音速空气动力学
🗣️ 情景例句
You're on the day shift now.
你现在上白班。
We use service centers at major stores. They ship goods back to our national service center for repairs.
我们采用大店服务中心，他们可把产品运送到我们的国内服务中心维修。
What's the time?
几点了？