have someone's number
US /hæv ˈsʌm.wʌnz ˈnʌm.bər/
UK /hæv ˈsʌm.wʌnz ˈnʌm.bər/
1.
摸清某人的底細, 知道某人的弱點
to know someone's true character or intentions, especially their weaknesses or secrets
:
•
I think I have his number; he's all talk and no action.
我想我摸清了他的底細；他光說不練。
•
The detective quickly had the suspect's number and knew he was lying.
偵探很快就摸清了嫌疑人的底細，知道他在撒謊。