“嘟囔”造句
“我不明白，”巡官一边
嘟囔道，一边用手捋了一下头发。
"I don't understand," the Inspector mumbled, passing a hand through his hair.
她不知
嘟囔了几句什么后就不再开口。
She muttered something unintelligible and lapsed into silence.
沃尔什小声
嘟囔了一句。
Walsh muttered something under his breath.