ultrasecret
1. he ultrasecret invention that has kept the high-tech world abuzz for nearly a year turns out to be a self-balancing, motorized scooter that costs less than 5 cents a day to operate, according to the company developing the device.
这项让高技术圈内议论了将近一年的极端保密发明终于亮相了,据研制该装置的公司称,这个能自动调节平衡的摩托踏板车每天行驶费用不到5美分。