形容词

不及物动词

1. 跷跷板
A seesaw is a long board which is balanced on a fixed part in the middle. To play on it, a child sits on each end, and when one end goes up, the other goes down.

2. 来回往复的;拉锯式的
In a seesaw situation, something continually changes from one state to another and back again.

3. (感情或某种局面)摇摆不定，不断反复，来回波动
If someone's emotions see-saw, or a particular situation seesaws, they continually change from one state to another and back again.

1. a plaything consisting of a board balanced on a fulcrum
the board is ridden up and down by children at either end

Synonym: teeterteeter-totterteetertotterteeterboardtilting boarddandle board