Disconnector
断路器; 切断开关; 隔离开关
🗣️ 情景例句
with my children and grandchildren.
与儿子、 孙子们在一起。
When does it arrive?
什么时候到那儿？
(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英里的速度在一年内走的距离，