stumble upon 偶然发现
stumble over 绊到
stumble across 偶然遇见
stumble through 跌跌撞撞地通过
A: Watch out! You nearly stumbled over that rock.
A：当心！你刚才差点被那块石头绊倒。
B: Thanks for the warning. I didn't see it there.
B：谢谢提醒。我刚才没看见它在那儿。
1) 绊倒，踉跄
2) 偶然发现
3) 在说话或做事时出错
1. 绊倒
2. 偶然发现
verb
1. to trip or lose one's balance while walking
2. to find or meet something by chance
Synonym: trip, encounter