So you put a message into this device and then you roll it on the wall, and it basically has all these solenoids pressing the buttons on spray cans, so you just pull it over a wall and it just writes on the wall all the political messages.
将信息输进这台机器 然后将其滚过墙面 因为它带有电导管 能触发喷雾开关 所以只需要将它在墙上一拉过去 字就自动写在了墙上 这是一些政治宣言