you'd better
You better believe it.
You’d better stop them.
Fareste meglio a non andare oggi.
You’d better not go today.
You'd better not talk.
Fareste meglio a vedere un dottore.
You’d better see a doctor.
You'd better tell me everything.
Fareste meglio a lasciarla da sola.
You'd better leave her alone.
Fareste meglio a non discutere con Tom.
You’d better not argue with Tom.
You'd better keep an eye on them.