[no obj., with adverbial of direction]move or act in an awkward or confused manner
笨手笨脚地进行;跌跌撞撞地前进;踉跄
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they bumbled around the house 他们跌跌撞撞地在屋里乱转
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[as adj.
bumbling ]his bumbling interventions .他的拙劣的干涉。
[no obj.]speak in a confused or indistinct way
模糊不清地讲话。
[with adverbial](of an insect)buzz or hum
(昆虫)嗡嗡作响
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she watched a bee bumble among the flowers .她看着蜜蜂在花丛中嗡嗡地飞来飞去。
"late Middle English (in the sense hum, drone): from