give someone the slip
US /ɡɪv ˈsʌm.wʌn ðə slɪp/
UK /ɡɪv ˈsʌm.wʌn ðə slɪp/

1.
摆脱, 溜走
to escape from someone who is chasing or following you
:
•
The suspect managed to give the police the slip in the crowded market.
嫌疑犯设法在拥挤的市场中摆脱了警察。
•
We tried to follow them, but they gave us the slip.
我们试图跟踪他们,但他们摆脱了我们。