keep up an act
устраивать спектакль, претворяться
"Don't try to keep up an act; I know what you are capable of."
Другие идиомы:
- keep (someone) on
- keep (someone) from (doing something)
- keep down (something)
- keep on (doing something)
- keep up appearances
- keep one's hand in (something)
- keep a close watch on (someone or something)
- keep the ball rolling
- keep one's eyes peeled for (someone or something)
- keep (someone) up
- keep a stiff upper lip
- keep still
- keep (something) down
- keep (someone) in stitches
- keep a close watch over (someone or something)