Correct

过山车

/ guò shān chē / 
Strokes

Definition

roller coaster

Example

As a Noun

roller coaster

1
Guòqù
过去
jī
几
zhōu
周
jiù
就
xiàng
像
zuò
坐
guòshānchē
过山车
  
。

The last few weeks have been a real roller coaster.

2
Zuò
坐
guòshānchē
过山车

ride a roller coaster; have/take a roller-coaster ride