Photocell relay
[電] 光電池繼電器
?? 詞語組成解析
photocell
[?fo?to?sel]
n. 光電池;
relay
[r?'l?i]
n. 接替人員，替班;傳遞;接力賽;繼電器;
vt. 轉播，傳達;用驛馬遞送，使接替;分程傳遞;
??? 情景例句
What's the matter?
發生了什么事？
A courageous foe is better than a cowardly friend.
勇敢的敵人勝過懦怯的朋友。
We can do that at the meeting tomorrow.
我們明天開會時再簽訂吧。