seesaw

1. N-COUNT A seesaw is a long board which is balanced in the middle. To play on it, a child sits on each end, and when one end goes up, the other goes down. 蹺蹺板

There was a sandpit, a seesaw and a swing in the playground. 操場(chǎng)上有一個(gè)沙坑,一副蹺蹺板和一架鞦千。