Easers
松经装置, 松经杆
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
My Biochem lectures are in the morning, and the labs are in the afternoon.
生物化学的课安排在上午，实验在下午。
The bus was full. We couldn't get on.
车挤得满满的，我们上不去。