Answerback unit
[电] 应答器
🧩 词语组成解析
[电] 回答
unit
['ju:nit]
n. 单位，单元;装置;个体;[数]单位数;
🗣️ 情景例句
His studies haven't been inproving lately.
他的学业最近没什么进步。
How much does it cost to rent a mid-size car?
租一辆中型汽车要多少钱？
Intermittent tap-water supplies should be regarded as particularly suspect.
断断续续的水管应该被视为是非常可疑的。