Used to point out the specific part of a task or plan that is hard to manage or resolve.
“The difficulty is finding a time when both teams are free.”
“The difficulty is that the part is no longer manufactured.”
In this listening section, 'the difficulty is' often appears when a speaker responds to a suggestion by explaining why it isn't so simple. Use it as a cue that a complication is being introduced right after an idea was proposed, and note exactly what makes it hard.
Synonyms: the problem is, the hard part is, the challenge is