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1·He stumbled and almost fell.

他绊了一下，差点儿摔倒。《柯林斯英汉双解大词典》

2·The child stumbled and fell.

孩子绊了一下，摔倒了。《牛津词典》

3·I stumbled over a rock.

我在石头上绊了一下。《牛津词典》

4·He stumbled over Luke's prostrate body.

他绊倒在卢克俯卧的身躯上。《牛津词典》

5·She stumbled and fell, scraping her palms and knees.

她绊了一跤摔倒了，擦伤了双掌和双膝。《柯林斯英汉双解大词典》

6·I stumbled sideways before landing flat on my back, much to the amusement of the rest of the guys.

我向侧面绊了一下，然后仰面摔倒了，这让其余人乐不可支。《柯林斯英汉双解大词典》

7·He stumbled over [against] a stone.

他被一块石头绊倒。《新英汉大辞典》

8·Wombat stumbled into a hole. Stop, you going too fast. I need to rest, he complained.

袋熊被一个洞绊倒了。“停，你跑太快了。我需要休息。”他抱怨道。

9·Bown and his colleagues stumbled across it while they were doing geological mapping in the region.

鲍恩和他的同事在该地区进行地质测绘时偶然发现了它。

10·She stumbled upon an online community called Blotanical, a forum for gardeners, many with an interest in sustainability.

她偶然发现了一个名为 Blotanical 的在线社区，这是一个园丁论坛，其中很多园丁都对可持续发展感兴趣。

(1)stumble upon偶然发现

(1)stumble on无意中发现；偶然遇到，碰巧找到

(1)stumble over给…绊倒；结结巴巴地说

(1)stumble across偶然发现