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
The editorial in this paper has my friend Nat Baker real upset.
这张报纸上的社论着实令我的朋友Nat Baker不高兴。
To have a shoeshine
给...擦皮鞋
Excuse me for ringing you so late in the evening, but I've only just got home.
对不起，这么晚给你打电话，我刚到家。