Definition
to gaze at someone with romantic or sexual intent
色瞇瞇的看；慰懐的看
At the party, he kept eyeing her up, as if he was interested in her.
在派对上，他一直对她抛媚眼，好像对她感兴趣。
She noticed the boy eyeing her up with a flirtatious look.
她注意到那个男孩用调情的眼神对她抛媚眼。
He was eyeing her up in the coffee shop, his gaze showing clear affection.
他在咖啡店里对她抛媚眼，目光中流露出明显的爱慕之情。