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 track of (someone or something)
- keep late hours
- keep up with the Joneses
- keep one's nose to the grindstone
- keep (something) to oneself
- keep harping on (something)
- keep (someone) company
- keep one's word
- keep a close watch over (someone or something)
- keep one's opinions to oneself
- keep one's head
- keep good time
- keep (someone) on
- keep (someone or something) in check
- keep one's cool