眉开眼笑 (méi kāi yǎn xiào)

brows raised in delight, eyes laughing (idiom); beaming with joy; all

Character breakdown

Usage

听到好消息她眉开眼笑。

She beamed with joy when she heard the good news.

Tīng dào hǎo xiāo xi tā méi kāi yǎn xiào.