mumbled

He mumbled a few words and left.

他咕哝几句便走。

I wish you wouldn't mumble - I can't hear you clearly.

我希望你要含含糊糊 - 我你在讲什么。

He mumbled something to me which I did not quite catch.

他对我叽咕几句, 可我没太楚。

He mumbled sth. to me but I could not hear what he said.

他对我咕哝几句，可是我没他的什么。

Mr. Bosher, with his mouthful of biscuit, mumbled that it was sweetly pretty.

伯希尔先生满嘴塞着饼干，叽叽咕咕地这真是美极。

He always mumbles when he's embarrassed.

他感到难为情时就含糊。

George mumbled incoherently to himself.

治语无伦次地喃喃自语。

In March he goes on a survival course and learns about the “umbles”: as hypothermia sets in you mumble, fumble, grumble, stumble, then finally tumble.

三月，开始野外生存训练，懂得寒冷下嘴、脚是什么样：低温开始，咕哝，摸爬，嘟囔，踉跄，终于仆倒在地。