roller coaster
美 [ˈrəʊlərˌkəʊstər]英 [ˈrəʊləˌkəʊstə]
- n.过山车;〈比喻〉剧烈起伏(的事物)
- 网络云霄飞车;游乐场过山车;摩天轮
复数:roller coasters

roller coaster
1.(游乐场的)过山车,环滑车a track at a fairground that goes up and down very steep slopes and that people ride on in a small train for fun and excitement
2.不断变化的局势a situation that keeps changing very quickly
1
2
3
5
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29