- A device or structure, such as a drawbridge, counterbalanced so that when one end is lowered the other is raised.平衡装置：一种装置或结构，比如吊桥，当一端末端降下时，另一边就升起，使保持平衡
- French [seesaw] 法语 [跷跷板]
- bas [low] from Medieval Latin bassus bas [低的] 源自 中世纪拉丁语 bassus
- cul [bottom] from Latin cūlus [rump] * see (s)keu- cul [底部] 源自 拉丁语 cūlus [鸟兽的臂部、尾梢] * 参见 (s)keu-