stumblev.绊倒;蹒跚;犯错误;无意中发现n.绊倒;错误
stumble on the threshold刚一着手就搞糟了
stumble at the threshold刚一着手就搞糟了
stumble around in the dark在黑暗中瞎闯
Stumbled over a tree root.树根绊了我一脚。
Stumble He tripped and fell.百家(姓,日本)
Stumbled but regained his balance.他绊了一下但又马上回复了平衡。