vi.

1. 絆腳，絆倒[（+on/over）]
   He stumbled on the staircase and hurt his leg.

   他在樓梯上絆了一跤，傷了腿。

2. 踉蹌，蹣跚而行[Q][（+along）]
   The tired old man stumbled along.

   那位疲憊的老人蹣跚而行。

3. 結結巴巴地說；躊躇[（+at/over）]
   The boy stumbled through his recitation.

   這男孩結結巴巴地背誦。

4. 失足，犯錯誤；步入歧途[（+into）]
   The waiter stumbled several times over our order.

   那位侍者好幾次弄錯了我們點的菜。

5. 偶然碰見，碰巧發現[（+on/upon/across）]
   I stumbled upon the rare book in a second-hand bookstore.

   我在一家舊書店偶然找到這本珍貴的書。

vt.

1. 使絆腳，絆倒
   In the darkness he stumbled his shin against the bed post.

   黑暗中他的小腿絆在了床柱上。

2. 使遲疑不決，使躊躇
   The problem stumbled him.

   這個問題把他難住了。

n.

1. 絆倒；失足；錯誤[C]

v.

1. trip or momentarily lose one's balance.
   ▸walk unsteadily.
2. make a mistake or repeated mistakes in speaking.
3. (stumble across/on/upon) find by chance.

n.