一问三不知
一问三不知一问三不知[yī wèn sān bù zhī]1.■deny all knowledge of an event; be entirely ignorant; not knowing a thing; shake one's head in answer to all quesions; say “I don't know” to every question
热门单词
- 一平如镜
- 一步作业
- 一片荒地
- 一群动物 a rout; a bevy;
- 丁字风向标 {工} landing tee; wind tee;
- 七十分之一
- 七颠八倒
- 万向节滑叉 universal-joint slip yoke;
- 万字细工
- 三夹板
- 三度
- 三方结晶 trigonal crystal;
- 三相三线制 three-phase three-wire system;
- 三相异步电动机 three-phase asynchronous;
- 三端波导环流器开关 three-port waveguide circulator switch; trinistor;
- 三维测井 three-dimensional velocity logging;
- 三色说 trichromatic theory;
- 三裂兰 nodding cap; nodding pogonia;
- 三角起重机 gin;
- 三轴铣床 three-head milling machine;
- 上位概念
