He had thought that being locked into a cage would send him mad.

他曾以为一经关入樊笼，自己一定会发疯的。

youdao

Email is not a good way to get mad at someone since you can't interact. You can send friendly message very easily since they are harder to misinterpret.

最后一段的意思是：电子邮件是个传递好消息的通道，但如果你传递能够使人发狂的坏消息，邮件不是一个好的渠道，因为你不知道他的反应如何。

youdao

And they shall drink, and be moved, and be mad, because of the sword that I will send among them.

他们喝了就要东倒西歪、并要发狂、因我使刀剑临到他们中间。

youdao

And they shall drink, and be moved, and be mad, because of the sword that I will send among them.

他们喝了就要东倒西歪、并要发狂、因我使刀剑临到他们中间。

youdao