您要查找的是不是：
- 关(surname)
- 互mutual
- 开关power switch
- 清关clear customs
- 网关gateway
- 互感mutual inductance
- 过关pass a barrier
- 互译intertranslation
- 中关second trial
- 互赠giff-gaff
- 被关captivity
- 互锁interlock
- 接近开关proximity switch
- 玄关vestibule
- 互操作interoperate
- 空气开关air-break switch
- 互调intermodulation
- 限位开关limit switch
- 互生mutualism
- 结关customs clearance
