您要查找的是不是：
- 关(surname)
- 开关power switch
- 清关clear customs
- 网关gateway
- 何种which kind of
- 过关pass a barrier
- 因何whereat
- 中关second trial
- 有何不可why not
- 被关captivity
- 汝欲何往?Whither goest thou?
- 接近开关proximity switch
- 何时何地when and where
- 玄关vestibule
- 何地where
- 空气开关air-break switch
- 无论何时何地no matter when and where
- 限位开关limit switch
- 闷闷不乐的工作者，无奈何要做他厌恶的工作An unhappy worker, condemned to a job he hates
- 结关customs clearance
