keep on one's toes
быть бдительным, внимательным
Mark tried to keep on his toes during a grammar test.
Другие идиомы:
- dip one's toe in the water
- keep books
- keep one's place
- keep harping on (something)
- keep time
- keep to oneself
- keep one's opinions to oneself
- keep (someone) in line
- keep (something) under one's hat
- keep a straight face
- keep a secret
- keep down (something)
- keep (someone) on tenterhooks
- keep track of (someone or something)
- keep one's eyes peeled for (someone or something)