语法与词汇 20.He turned his back on them when they most needed him. The underlined part means ______.(2014-73)
【正确答案】 C
【答案解析】turn one’back on sb.表示“不理;背弃,抛弃”。此句出自牛津高阶英语词典(第七版),句意为“当他们最需要他帮助时,他却背弃了他们”。如:turn one’s backon one’s country背叛祖国。