
One or two
Non-specific quantity
Implies flexibility in number, not limited to exactly one or two.

I might bring one or two friends to the party.
Minimal tasks
Suggests a small workload that's easy to handle or complete soon.

I just have one or two emails to send out.
Vagueness for politeness
Used to be polite when declining to give a precise number, often because it's large.

I've read one or two of his articles.
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