pick at

US /pɪk æt/
UK /pɪk æt/
"pick at" picture
1.

挑剔地吃, 小口吃

eat food slowly and without much enthusiasm

:
She was so upset that she could only pick at her dinner.
她心煩意亂,只能挑剔地吃晚餐。
He's been picking at his food all evening.
他一晚上都在挑剔地吃東西。
2.

挑剔, 吹毛求疵

criticize someone or something repeatedly, especially in a petty or annoying way

:
She's always picking at his grammar.
她總是挑剔他的語法。
Don't pick at every little mistake I make.
不要挑剔我犯的每一個小錯誤。