2018年cet6考试听力指导词汇十
on and off 断断续续
on and on 不断地
on cloud nine 非常高兴
on one's last legs 生命即将结束
on one's own 自食其力
on pins and needles 如坐针毡
on reserve, be 保留;保存
on sale 折价;减价;廉价特卖
on short notice 一接到通知就...
on some days in certain weeks 在某几个星期的某几天里
on the blink 身体不爽;性能不佳
on the carpet 训斥
on the dot 准时
on the level 老实;忠诚
on the nail 立即
on the nose 准确地
on the q.t. 悄悄的;暗中(quiet)
on the right track 做对了;走上正路了
on the rocks 在岩石上
on the score of 因为
on the side 兼职
on the wagon 戒酒
on the wane 逐渐衰落
on top of the world 精神饱满
once in a blue moon 机会难得;绝无仅有
once in a while 偶尔
one and for all 断然;仅此一次