teeter-totter
noun /ˈtiːtə tɒtə(r)/
/ˈtiːtər tɑːtər/
(North American English) (also see-saw British and North American English)
- a piece of equipment for children to play on consisting of a long flat piece of wood that is supported in the middle. A child sits at each end and makes the teeter-totter move up and down.
跷跷板：一种供儿童玩耍的设备，包括一块中间支撑的长木条。一个孩子坐在两端，使跷跷板上下移动。 词源late 19th cent.: reduplication of teeter or totter.