drive a wedge between someone
US /draɪv ə wɛdʒ bɪˈtwin ˈsʌmˌwʌn/
UK /draɪv ə wɛdʒ bɪˈtwin ˈsʌmˌwʌn/

1.
離間, 製造隔閡
to cause disagreement or hostility between people
:
•
His lies began to drive a wedge between the two friends.
他的謊言開始離間這兩個朋友。
•
The new policy could drive a wedge between management and employees.
新政策可能會離間管理層和員工。