1After a few too many drinks, he began to stumble over his words and eventually fell asleep at the table.
2The team's strategy was to avoid stumbling into the same pitfalls that had doomed their previous projects.
3She stumbled upon an interesting article while browsing through the archives of the academic journal.
4The company's financial troubles began when they stumbled into a series of costly lawsuits and settlements.
5The professor warned her students not to stumble into the trap of oversimplifying complex historical events.