Stocks seesawed ever lower until prices found some new level of equilibrium.

股票在震荡中进一步下跌，直到股价达到某个新的平衡点。

For the economy to be in equilibrium, income must equal expenditure.

经济要达到平衡，收支必须均衡。

I paused in the hall to take three deep breaths to restore my equilibrium.

我在大厅里停了一下，深吸了三口气以恢复平静。

He had recovered his equilibrium and even his good humour, somehow.

不知怎的，他已经恢复了平静，连心情也变好了。