Answerback unit
[電] 應答器
?? 詞語組成解析
[電] 回答
unit
['ju:nit]
n. 單位，單元;裝置;個體;[數]單位數;
??? 情景例句
I'm trying to get together with her.
我想和她在一起。
Why did you go there?
你為什么去那兒？
This decline in vigour with the passing of time is called ageing.
生命力隨時間的流失而衰退叫做衰老。