A-c relay
[電] 交流電中繼站
?? 詞語組成解析
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
Here I am.
我在這兒！
I'll pick up the tab.
我來付帳。
If, at the time, the British had not feared invasion, it would have been completed.
如果不是因為那時英國人害怕入侵，隧道早已建成了。