mumbled

He mumbled a few words and left.

他几句便走。

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

他对叽几句话, 可没太听清楚。

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

伯希尔先生满嘴塞着饼干，叽叽地这真是美极。

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

他对几句，可是没听清他么。

George mumbled incoherently to himself.

乔治语无伦次地喃喃自语。

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

希望你话不要含含糊糊 - 听不清你在讲么。

He always mumbles when he's embarrassed.

他感到难为情时话就含糊不清。

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、脚是么样：低温开始，，摸爬，嘟囔，踉跄，终于仆倒在地。