聚百科

每日雅思词汇:那些叠词

back and forth 来来回回的;  flesh and blood 血肉之躯;  heavy and light 轻重;  iron and steel 钢铁;  night and day 夜以继日的;  off and on 断断续续的;  old and young 无论老少;  one and only 唯一;  rain or shine 不论阴晴;  twos and threes 三三两两