strike the foot against sth and almost fall
move or walk in an unsteady way
make a mistake or mistakes as one speaks or play music, etc.
meet or discover by chance
"he recited the whole poem without a single trip"
"he arranged his robes to avoid a trip-up later"
"confusion caused his unfortunate misstep"
"The drunk man stumbled about"
"She stumbled over the tree root"
"I stumbled across a long-lost cousin last night in a restaurant"
"She slipped up and revealed the name"
Cables over which they stumbled painfully.
出自： E. Waugh
The ground was rough and several times she stumbled into holes.
出自： S. Chitty
Police investigating tax fraud stumbled across a drugs ring.
At least Adden never stumbles through a performance, he can always be trusted to sing well.