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
No, you needn't do that.
不行呀，你不必这样。
I look forward to receiving your reply.
我期待着你的答复。
When the article arrived, the editor read the first sentence and then refuse to publish it.
稿子寄来后，编辑看第一句话就拒绝予以发表。