have a sharp tongue
US /hæv ə ʃɑrp tʌŋ/
UK /hæv ə ʃɑrp tʌŋ/

1.
言語刻薄, 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;她往往言語刻薄。
•
Despite his kind appearance, the old man could sometimes have a sharp tongue.
儘管他看起來很和善,但這位老人有時會言語刻薄。