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one foot in the grave 离死不远了one way or the other 总要有一个办法open an account 开银行户头out in the cold 受冷落out of line 错误得越出常规out of my line 外行out of one's mind， be 发疯out of order 坏了out of question 无疑的out of season 不合时宜的out of sight， out of mind 看不见了，也渐渐忘了out of sth， be 脱销out of the question 不可能out of the way 偏僻的；罕见的out of the world 只应天上有out of this world 只应天上有own boss 不再受雇于人了