Usually, a wall in a house is a big white-board, even the desktops in crush-room are white-boards.
常常是一间屋子的一面墙就是一块白板，甚至休息室的桌面也是白板作的。
2
We have so much glass, all the wine and what have you that's consumed on board, and we actually crush that.
我们有很多玻璃，酒瓶，还有船上消耗的各种东西。
3
This was made painfully obvious to me when trying to board a train to Xi 'an at Beijing's central railway station. The security entrance to the station was, rather than a line, a crush of humanity.