If you raise an eyebrow, it can mean "I want to have sex with you", but also "I find that what you just said is completely idiotic."
My eyebrows are black.
He showed his disapproval by raising an eyebrow.
What happened to your eyebrows?
to rise eyebrows
We show feelings with our eyebrows by moving them up and down.
Dark and thick eyebrows make you look angry.
He lifted an eyebrow in surprise
Mandy’s eyebrows lifted in surprise when she saw us.
She looked at him with one raised eyebrow.
Your eyebrows have a weird shape. Have you been plucking them?
He did not even raise an eyebrow at the news of his wife's death.
English word "眉毛"(eyebrow) occurs in sets:身体部分 - Parts of the body