get a foot in the door

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

get a/ your foot in the door idiom
to enter a business or organization at a low level, but with a chance of being more successful in the future
• Making contacts can help you get a foot in the door when it comes to getting a job.
Thesaurus⁺: ↑Opportunity ↑Freedom to act
Main entry: foot_idiom