Examples of using "расстроится" in a sentence and their english translations:
Tom is going to be very upset.
Tom will likely be upset.
Tom isn't likely to be upset.
Mary will be upset if she doesn't win.
Tom will be very upset when he finds out what happened.
Tom will be very sad if you leave.
He'll be upset if she does that.
She'll be upset if he does that.
Tom will be upset if Mary doesn't do that.
I didn't know Tom would be so upset.
He'll be upset if she doesn't do that.
She'll be upset if he doesn't do that.
Tom will be disappointed if you don't go to his party.
He'll be upset if he doesn't win.
She'll be upset if she doesn't win.
Tom will be very upset when he finds out.
Tom will be upset if he doesn't win.