柯林斯词典go back on (going,went,gone,goes) 1. PHRASAL VERB If you go back on a promise or agreement, you do not do what you promised or agreed to do. 背離 (諾言、協議等) The budget crisis has forced the president to go back on his word. 預算危機已迫使該縂統背離了自己的承諾。 返回 go back on