It was difficult and mistakes were made.
Theirs is a difficult job, mistakes inevitably come with the territory.
From a styling standpoint, it would be difficult to mistake the new model for anything other than a 21st century Range Rover.
Others asked, perhaps cynically, "What are you running for now?" One even confused him — and this was a first, Mr. Green noted — with Scott M. Stringer, the Manhattan borough president, who, with his glasses, gravelly voice and shorter, stockier frame, would be difficult to mistake for a long-lost twin of Mr. Green's.
It would have been difficult to mistake New York City as a stronghold for the disaffected Anglicans -- upset about the church's acceptance of women and gays in leadership positions -- whom the Vatican this week announced it would be wooing to join the Roman Catholic Church.
Specificity is always very close to 100%, which indicates that it is difficult to mistake regular traffic for attack traffic, and there are very few false positives.
Whatever their cause, peanut and nut allergies can often produce the most severe allergic reaction, anaphylaxis, the violence of which is difficult to mistake.
For example, "In this ICU, it is difficult to discuss mistakes," vs. "In the ORs here, it is difficult to discuss mistakes".
QUICK READ Consumers are finding it increasingly difficult to correct mistakes on their credit reports.
"Talk through your CV and cover letter with a friend or coach as it can be difficult to spot mistakes yourself".
