This event is by invitation only. Attendance is limited to invited guests, and registration is not open to the general public. The Center for Strategic and International Studies (CSIS) and the Center ...

在 Chrome 浏览器上打开，界面如下所示：你能清晰地看到一条由密密麻麻的盲文符号组成的“蛇”在地址栏里爬动，即「长的点」代表贪吃蛇，「单个点」是食物，吃掉小点点代表的食物，身体一点点变长。