translation.en: He was very tenacious and he moved rather gracefully And then when they came to a stop, the boy would do a sudden vertical takeoff, 100 foot in the air, and then disappear.
translation.zh: 他便随着车的动作缓缓倾斜 车停下后 男孩便会突然垂直飞到100尺的高空 然后消失