At its most basic level, a roller coaster is a machine that USES gravity to send a train along a winding track.
从最基本的层面来说,过山车是一种利用重力让车体沿着弯曲轨道运行的机器。
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Nolan exemplifies the best kind of filmmaking, unchained from the laws of time, space and even gravity, but never from the most basic rules of narrative.