一而再， 再而三
一而再， 再而三[yī ér zài zài ér sān]1.■over and over again; again and again; more and once; once and again; repeatedly; time and again; twenty and twenty times
热门单词
- 一味退让
- 一灯如豆
- 一点红
- 一致门 coincidence gate
- 一言一语
- 丁苯胶乳 styrene butadiene latex
- 万向节机构 universal-joint mechanism
- 三位控制 three-position control
- 三年五载
- 三敛
- 三极检波器 audion
- 三民主义
- 三点开关 three-point switch; three-way switch
- 三相曲线 triple curve
- 三硫化四磷 {无化} phosphorous sesquisulfide; tetraphosphorus trisulfide
- 三线（式）电度表 three-wire meter
- 三角对称线 triangular symmetric curve
- 三通天线转发开关 triplexer
- 三键
- 三项递推 three term recurrence
- 上估计
