He infuriatedhiswife by setting up blindingly bright lights in the living roomandrolling a camera along a track to practice dolly shots.
他在客厅中打出刺眼的明亮光线，让摄像机沿一条轨道滚动来演练推拉摄影，这一切都令他的妻子怒不可遏。
2
Because the inner space of a hollow track is small, a driving wheel is arranged outside the hollow track in the prior art, and a dolly is driven to move by friction force generated by spring force.