1.He mumbled a few words and left.

1.他咕哝了几便走了。

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

2.他对叽咕了几话, 没太听清楚。

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

3.希望你说话不要含含 - 听不清你在讲什。

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

4.他对咕哝了几，没听清他说的什。

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

5.伯希尔先生满嘴塞着饼干，叽叽咕咕地说这真美极了。

6.He always mumbles when he's embarrassed.

6.他感到难为情时说话就含不清了。

7.George mumbled incoherently to himself.

7.乔治语无伦次地喃喃自语。

8.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.

8.三月，开始野外生存训练，懂得了寒冷下嘴、脚什样：低温开始了，咕哝，摸爬，嘟囔，踉跄，终于仆倒在地。