idioms

  all grist to the mill (something that is useful) I never refuse odd jobs to gain more experience; it’s all grist to the mill. These seemingly useless backup files will be grist to the mill one day.     envocabulary.com

  about face (a sudden change of direction) I have left all my money at home. Let’s make a quick about-face to get them. (a change of opinion or policy) My father did an about-face on his rule about not playing in the yard. Now we can do it if …

  set your heart on something (decide to get or achieve something) He has set his heart on getting a good grade. She has set her heart on a pearl necklace. envocabulary.com

  a snake in the grass (a person who pretends to be your friend but secretly does things to harm you) He looks honest, but in fact, he is a snake in the grass. Her new boyfriend is a snake in the grass.     – English Vocabulary

    a second bite of the cherry (a second opportunity to do something) We missed a cup, but we hope for a second bite of the cherry. This is your only chance. You will not get a second bite at the cherry.     – English Vocabulary