keep at (something)

Другие идиомы:

• keep a close watch on (someone or something)
• keep one's finger's crossed
• keep (something) to oneself
• keep one's hand in (something)
• keep an open mind about (something)
• keep a secret
• keep one's hands off (someone or something)
• keep off (something)
• keep up an act
• keep up with the Joneses
• keep cool
• keep time
• keep track of (someone or something)
• keep an eye on (someone or something)
• keep a cool head