Disconnector
斷路器; 切斷開關; 隔離開關
??? 情景例句
with my children and grandchildren.
與兒子、 孫子們在一起。
When does it arrive?
什么時候到那兒？
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年內走的距離，