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
Oh, that's wonderful! That's wonderful!
噢， 真是美极了 ，真是美极了！
It hurts like hell!
疼死啦！
I looked at the map and then at the millimeter.
我看了看地图，又查了一下里程表。