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 an ear out for (something)
- keep one's head down
- keep (someone) on tenterhooks
- keep (someone) in stitches
- keep up with (someone or something)
- keep house
- keep track of (someone or something)
- keep body and soul together
- keep one's eye on the ball
- keep (someone) up
- keep one's feet on the ground
- keep at (something)
- keep tabs on (someone or something)
- keep pace (with someone or something)
- keep on an even keel