When cockroaches cross these lines, the particles of the chalk will cut them like broken glass, and they’ll soon die of dehydration.
当小强爬过这些线的时候，粉笔的粒子就会像碎玻璃一样划过它们，很快它们就会死于脱水。
2
This house has louver glass Windows at the tops of all exterior and interior cross-walls to allow ventilation throughout the house as well as up the open stairway.
这座住宅中在所有外墙和内隔墙均安装有玻璃百叶窗，使整座房子以及开放式楼梯得以通风。
3
By removing the glass, we got rid of any cross-reflection, so our contrast took a giant jump upwards.