no obj.
1- trip or momentarily lose one's balance; almost fall绊脚; 绊跌, 绊倒：
her foot caught a shoe and she stumbled.
她的脚在一只鞋上绊了一下, 差点摔倒。
1.1
- with adverbial of direction trip repeatedly as one walks跌跌撞撞地走, 蹒跚而行：
his legs still weak, he stumbled after them.
他的腿仍然虚弱, 步履蹒跚地跟在他们后面。
1.2
- make a mistake or repeated mistakes in speaking结结巴巴说话, 一再出错地说话：
she stumbled over the words.
她说话结结巴巴。
1.3
stumble across/on/upon
find or encounter by chance偶然遇到; 碰巧找到：a policeman had stumbled across a gang of youths.
警察偶然碰上一群结帮青年。
1
- an act of stumbling绊脚; 绊跌, 绊倒; 说话结结巴巴。
1.1
- a stumbling walk跌跌撞撞地走, 蹒跚而行：
he parodied my groping stumble across the stage.
他嘲弄地模仿我跌跌撞撞摸索着走过舞台的样子。
派生词
stumbler
nounstumblingly
adverb词源
Middle English (as a verb)： from Old Norse, from the Germanic base of STAMMER.