Speaker efficiency
[电] 扬声器效率
🧩 词语组成解析
speaker
['spikɚ]
n. 说话者;演讲者，发言人;讲某种语言的人;扬声器;
🗣️ 情景例句
Please have two window seats placed aside for us.
请为我们保留两个靠窗口的位子。
They're building a new house up the street from me.
我上面的那条街正在造一幢新房子。
She has been to school.
她上学去了。