have a sharp tongue

US /hæv ə ʃɑrp tʌŋ/
UK /hæv ə ʃɑrp tʌŋ/
"have a sharp tongue" picture
1.

言语刻薄, 嘴巴很毒

to tend to speak in a critical or sarcastic way

:
Be careful with her; she tends to have a sharp tongue.
小心她;她往往言语刻薄
Despite his kind appearance, the old man could sometimes have a sharp tongue.
尽管他看起来很和善,但这位老人有时会言语刻薄