Well, a " spring rider" isn't so much about the child moving up and down, but more side to side, I think.
好吧,我认为“弹簧骑手” 并不是关于孩子上下移动,而是左右移动。
2017 ESLPod
To be honest, we didn't have spring riders when I was a child at the playgrounds I used to go to, but I think that's what it is.
老实说,我小时候经常去的游乐场没有春季骑手, 但我认为就是这样。
2017 ESLPod
The important thing in a " spring rider" is that it is attached to or connected to a metal spiral – something made of a very strong, long tube of metal that goes around and around in a circle.
A spring rider or spring rocker is a bouncy, outdoors playing device consisting of a metal spring beneath a plastic or wooden central beam or flange, with 1 to 4 plastic or fiberglass seats above it. When a person sits on it, the structure moves and bounces. Spring riders are common in many playgrounds.