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
Due to lack of funds
由于缺乏经费
I'll make it up to you.
我会赔偿的。
I don't want to hear it.
我不想听！