you're listening skill is very nice!!!!!
the perfect sentence is -
"관둘 생각까지 있으면서 뭘 가려? 지금 그 쪽에 인턴 인력 부족해."
관두다 is a sort form of 그만두다. which means 'stop' (in this sentence, 'quit the job.')
생각 is think
> 관둘 생각까지 있다.
: you even think you're quitting your job,
뭘 : 무엇을 what.
가려? : 가리다(in this sentence it means 고르다. 따지다.) choose. consider, sensor
(I wrote many meanings because I can't find an exactly matched word. I just want you to get the hang of it)
지금 : now
그 쪽에 : there
인턴 : intern(intern worker, internship)
부족해 : 부족하다.shortage
>지금 그 쪽에 인턴 부족해.
: There is a shortage of intern.
You even thought you're quitting your job..then what makes you are being picky? There is a shortage of intern worker.
it's a little different but I should revise like this for fluency.
Have a good day!