2. could also mean that every day, some person loses their hair - ie. that it's not an uncommon event.
"People have car accidents every day." = "Every day, at least one person has a car accident."
2. could work.Hi Raymott,
Thank you for your insight, but I'm sorry I don't quite see your point, because the phrase "not an uncommon event" means "a common event." Do you mean that sentence 2 is also correct and natural? Thanks a lot.
Regards,
maoyueh
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