1. The children were playing on a teeter-totter in the park.
孩子们在公园里玩跷跷板。

2. She sat on one end of the teeter-totter and waited for her friend.
她坐在跷跷板的一端等朋友。

3. The teeter-totter moved up and down as they laughed.
跷跷板随着他们的笑声上下起伏。

4. His emotions were like a teeter-totter between hope and fear.
他的情绪像跷跷板一样在希望和恐惧之间摇摆。

A: Have you ever played on a teeter-totter?
A：你玩过跷跷板吗？

B: Yes, I loved it when I was a child.
B：有，我小时候很喜欢玩。

1) 指儿童游乐设施跷跷板

2) 比喻上下波动或不稳定状态

3) 描述两种力量交替变化的情况

1. 跷跷板；（美式英语）跷跷板游戏装置

e.g. The kids jumped off the teeter-totter.
孩子们从跷跷板上跳下来。

noun

1. a playground apparatus consisting of a board balanced in the middle, used for up-and-down motion by children

Synonym: seesaw