Maybe you should start at the smaller roller coasters and then just work your way up to the bigger ones.

也许你应该先从小型过山车开始，然后继续向大型过山车前进。

Start off with a small roller coaster, then go on a medium, then a large. You'll get the hang of it.

从小型过山车开始，然后坐中型过山车，最后挑战大型过山车。你会掌握诀窍的。

They come out in many shapes, but I picked this one 'cause it has a small roller for the eye as well.

它们有多种形状，但我选择了这个， 因为它也有一个小滚轮。