And turning to me he mumbles savagely: "That cluck!"

说完他又转向我恶狠狠地咕哝道，“这个笨蛋！”

youdao

He mumbles something about knowing better but follows my advice when he spots a massive traffic jam ahead.

他嘟哝着“自己更清楚”什么的，但他发现前方大规模交通堵塞后听从了我的建议。

youdao

Now, heading into the tunnel, he mumbles a prayer in his native Quechua language to the deity who rules the mountain and all the gold within.

现在，他走入矿道，用当地的盖丘亚族语喃喃自语，向统治山脉和金矿的神灵祈祷。

youdao

He mumbles modesties, then, as a way of changing the subject, shows me to my room.

BBC: Swiss movement

If he does say more, he mumbles away in his trademark baseball cap and wanders off before anyone's really worked out what he has said.

BBC: Russian minnows hit the big time

"Industry is a city just like any other, "he mumbles, straight-faced.

FORBES: City of Greed