(pos:名詞)(img:https://upload.wikimedia.org/wikipedia/commons/9/9c/Rollercoaster_expedition_geforce_holiday_park_germany.jpg)yue:一種#機動遊戲:原理係列車沿住高低起伏嘅路軌運行,上到一定高度之後靠#地心吸力 急速向下,務求令上面嘅人覺得驚險刺激(量詞:架)eng:roller coaster