Photocell relay
[电] 光电池继电器
🧩 词语组成解析
photocell
[ˈfoʊtoʊsel]
n. 光电池;
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
Who's this?
你是谁？
Mettle is dangerous in a blind horse.
瞎马鼓勇气，正是危险事。
The material was not damaged by us.
东西不是我们损坏的。