幕后进行了大量的艰苦工作。

A lot of hard work has been going on ___behind ___the ___scenes.

博拉姆女士知道许多在幕后发生的事情，这些是患者们不知道的。

Ms. Bolam knew a lot of things going on ___behind ___the ___scenes, which were not known to the patients.

真正的决定常常是在幕后做出的。

The real decisions are often made ___behind ___the ___scenes.