seesawed是什么意思？

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.

In a seesaw situation, something continually changes from one state to another and back again.

If someone's emotions see-saw, or a particular situation seesaws, they continually change from one state to another and back again.