cheat someone out of something        
phrasal verb with cheat verb [ I or T ] uk/tʃiːt/ us/tʃiːt/
 骗取,诈取
to unfairly prevent someone from getting or achieving something that they should have
  She claimed that her cousin had cheated her out of her inheritance. 她声称她的表兄骗取了本该由她继承的遗产。