switch grease的用法和樣例:
例句
- The switch completes the circuit when you close it.
當你合閘時,電閘把電路接通了。
- He pressed the switch and all the lights on the switch and all the lights on the threshing ground flashed on together.
他扳下電閘,打穀場上的燈一下子全亮了。
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