hand and glove
US /hænd ənd ɡlʌv/
UK /hænd ənd ɡlʌv/

1.
密切合作, 狼狈为奸
working closely together, often in a way that is dishonest or secretive
:
•
The two politicians were working hand and glove on the controversial bill.
两位政客在有争议的法案上密切合作。
•
It was clear that the company and the regulator were hand and glove.
很明显,公司和监管机构狼狈为奸。