Optical relay
[电] 光继电器
🧩 词语组成解析
relay
[rɪ'lɛi]
n. 接替人员，替班;传递;接力赛;继电器;
vt. 转播，传达;用驿马递送，使接替;分程传递;
🗣️ 情景例句
Does this car have good fuel economy?
这种车省油吗？
It has been a great year for all of us.
过去的一个，对我们大家来说，是辉煌的一年。
Ripe fruit falls from the trees and you never have to work.
成熟的水果从树上掉下来，人们根本无需劳动。