"stumbling" in Chinese (Simplified)
绊倒踉跄
Definition
走路不稳，像要摔倒一样，通常因为绊到东西或失去平衡。也可以指说话或做事时遇到困难。
Usage Notes (Chinese (Simplified))
可作形容词或动名词。常见搭配有“stumbling block”（障碍）和“stumbling over words”（说话磕磕绊绊）。既可以形容实际行动，也可指说话或进展上的障碍。日常口语常用，不正式。
Examples
He was stumbling on the uneven road.
他在不平的路上**绊倒**。
She kept stumbling over her words during the speech.
她在演讲时一直在**结巴**。
The child is stumbling because his shoes are untied.
这个孩子因为鞋带没系好而在**绊倒**。
I kept stumbling through my presentation because I was so nervous.
我因为太紧张，在演讲时一直在**磕磕绊绊**。
Watch your step, you’re stumbling a lot tonight.
小心点，你今晚**老是绊倒**。
He found himself stumbling over the answer during the interview.
他在面试时回答问题时一直在**磕巴**。