Their equipment was taken away from them.

他们的摄影器材被拿走了
They could no longer control their own money.

他们不能再掌管他们的金钱
The guards couldn't talk to them at all,

警卫根本不能和他们说话
so they could only talk to each other.

因而他们只能互相谈话
Some of the guards were just awful to them.

一些警卫对他们很糟糕
There were plans afoot to put them on trial,

有些正在进行的计划要审判他们
a kind of show trial, but there was also this big possibility

一次公开审判但是仍然有很大的可能性
discussed that they might simply be killed.

讨论他们可能只是被处决
Trotsky asked that they be put on trial, so that the corruption

托洛斯基要求审判他们使那些腐败
and abuses of the autocracy could be revealed.

和独裁统治的滥用权力能被公诸于世
The context is that there are large, massive armies being organized,

背景是有大量的军队被组织起来
the White Armies.

即白卫军