two wire switch

例句：

1. 1.The two-wire switch is easy to operate and has a long lifespan.
   这种双线开关操作简单，使用寿命长。
2. 2. The electrician replaced the two-wire switch in the kitchen.
   电工更换了厨房里的双线开关。
3. 3.The two-wire switch was designed for high voltage applications.
   这种双线开关是为高压应用设计的。