bumbled什么意思？

bumbled的音标：...

He bumbled through his speech.他结结巴巴地讲完了他的演说.The professor bumbled absent - mindedly along the road.教授 心不在焉 地沿途瞎遛.The ancient empire was crushed and bumbled into the dust.这个古老的帝国被摧毁,遭到了奇耻大辱....