Portal Test Chamber 09/zh-hans

这是传送门的第j十间测验室，要求玩家在使用方块时被免接触分解格网.

危险

 * 无

设计错误

 * It is possible to stand on the button and shoot a portal halfway through the door opening. You can then jump through the portal in front of the door, and jump back out at the other end.