So, " to babble on" means to talk without stopping.

所以，“喋喋不休”就是不停地说话。

You had to babble on about " Bastille" By Pompeii?

你一定要说什么庞贝古城里的巴士底狱吗？

He just... babbled on about how precious family is and...

他只是啰嗦了几句 家庭有多珍贵之类的话。

And he'd get drunk and babble on like she died in some insane way.

而他自己喝醉了乱说她死的非常奇怪。

Luke sees Princess Leia, and C3PO tells Luke eventually that, you know, R2D2 kept babbling on about his mission.

卢克看到莱娅公主，C3PO 最终告诉卢克，你知道，R2D2 一直在喋喋不休地谈论他的任务。

And for a long time Lupoyarov still babbled on in the same way, and, as he went away, he promised to come again.

很长一段时间，卢波亚罗夫仍旧这样喋喋不休，临走时又答应再来。