Roller-Coaster Swaps滑道型互换
He roller-coaster他坐过山车
emotional roller-coaster情感起伏大
Roller-Coaster Rabbit过山车兔子
Roller-coaster swap过山车掉期;型互换
a roller-coaster ride滚筒过山车;过山车
a really exciting roller-coaster一个真正令人兴奋的过山车
HIGH-ALTITUDE ROLLER COASTER螺旋滑行车
ring-like roller coaster环形过山车
N-COUNT（可数名词） A roller coaster is a small railway at an amusement park that goes up and down steep slopes fast that people ride on for pleasure or excitement. 过山车
It's great to go on the roller coaster five times and not be sick.
能坐5次过山车而不吐真够棒的。
N-COUNT（可数名词） If you say that someone or something is on a roller coaster, you mean that they go through many sudden or extreme changes in a short time. (指人或事急转突变) 过山车 [journalism]
I've been on an emotional roller coaster since I've been here.
自从我到这里以来，情绪像坐上了过山车。