中英成語俚語800對017：背信棄義

　　中英成語俚語800對017：背信棄義

　　背信棄義

　　Go back on a person.

　　To back out.

　　Play one false.

　　A breach of promise.

　　Go back on.

　　eg：He is a gentleman who will not go back on anybody.

　　反義詞：忠心耿耿 As true as the dial to the sun.