美女 is beauty, not a net slang. It's a compliment, nothing negative.
美眉 comes from net slang, if you say in reality, you may make an flippant impression. Unless you are in the pub, or don't use 美眉
STOP FLIRTING DUOLINGO
Since this is a module for slang, slang terms for pretty girls, honey, cutie, babe, lovely, doll etc should be accepted.
"That beautiful woman does not want to talk to me” is not accepted 2019/28/5
This word has been out of date for years (
what is the difference with 美女 ?
美女 can also be a term of address.