be green around the gills
US /bi ɡriːn əˈraʊnd ðə ɡɪlz/
UK /bi ɡriːn əˈraʊnd ðə ɡɪlz/

1.
臉色發青, 看起來不舒服
to look ill or nauseous
:
•
After the roller coaster ride, he was green around the gills.
坐完過山車後,他臉色發青。
•
She looked a bit green around the gills after eating that questionable seafood.
吃了那些可疑的海鮮後,她臉色有點發青。