1. He started to babble out secrets he shouldn't have told.
他开始胡乱说出他不该告诉的秘密。

2. The baby began to babble out nonsense.
婴儿开始语无伦次地咿呀学语。

3. She was so nervous that she just kept babbling out random words.
她太紧张了，不停地胡乱说些没意义的话。

A: Why did you tell him about the surprise party?
A：你为什么告诉他关于惊喜派对的事？

B: I'm sorry, I just babbled it out without thinking.
B：对不起，我就是没经过大脑就随口说出来了。

1) 语无伦次地说话

2) 随口说出（秘密等）

3) 咿呀学语

1. 语无伦次地说话或随口说出

e.g.
She babbled out a series of excuses.
她语无伦次地找了一堆借口。

verb

1. To speak in a foolish, excited, or confused manner, often revealing information unintentionally.

Synonym: blurt out, chatter