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 down (something)
- keep one's wits about one
- keep (something) down
- keep up with the Joneses
- keep one's shirt on
- keep harping on (something)
- keep one's cool
- keep (something) under one's hat
- keep from (doing something)
- keep one's head down
- keep track of (someone or something)
- keep up with the news
- keep time
- keep one's finger's crossed
- keep one's mouth shut