在布雷顿森林协议下各国货币以固定汇率和美元绑定。

Under the Bretton Woods arrangement currencies were pegged to the dollar at fixed exchange rates.

那么在最近的几个月中，人民币兑美元的固定汇率水平是否意味着干预升级？

So does the yuan's fixed level against the dollar in recent months mean that intervention has risen?

但是Thomas所指的前提是在“固定汇率”的条件下还是在“当前汇率”的条件下还不甚清楚。

It was not clear if he was referring to constant or current exchange rates.