mumbles

He always mumbles when he's embarrassed.

他感到难为情时说话就糊不清。

He mumbled a few words and left.

他咕哝几句便走。

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

他对我叽咕几句话, 可我没太听清楚。

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

我希望你说话不要糊糊 - 我听不清你在讲什么。

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

他对我咕哝几句，可是我没听清他说的什么。

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

伯希尔先生满嘴塞着饼干，叽叽咕咕地说这真是美。

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。