get in with
US /ɡet ɪn wɪð/
UK /ɡet ɪn wɪð/

1.
与...打成一片, 与...搞好关系
to become friendly with someone, especially in order to gain an advantage
:
•
He's trying to get in with the popular crowd.
他正试图与受欢迎的人群打成一片。
•
She managed to get in with the right people and got promoted quickly.
她成功地与合适的人打成一片,并很快得到了晋升。