roller coaster 的英语意思
roller coasterˈroller ˌcoaster noun [countable] 
查看全部语言翻译1a track with very steep slopes and curves, which people ride on in small carriages at fairs and amusement parks一种有极陡坡道和弯道的轨道，人们乘坐小车在游乐场和主题公园中体验2a situation that changes often变化无常的局面: 
Their relationship was an emotional roller coaster.他们的关系就像一场情感过山车。
查看全部语言翻译1a track with very steep slopes and curves, which people ride on in small carriages at fairs and amusement parks一种有极陡坡道和弯道的轨道，人们乘坐小车在游乐场和主题公园中体验2a situation that changes often变化无常的局面: Their relationship was an emotional roller coaster.他们的关系就像一场情感过山车。