断绝关系 [- - ɡuān xi]break off all relations with ...; break off with sb.; cut off [break off] relation; have nothing to do with ...; repudiate any connection with ...; see the last of ...; sever connections [relations]; wash one's hands of：
•¶ 我发觉他对我说慌， 因此决定同他断绝关系。 I've found he lied to me, so I've decided to have done with him.