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
I have no time for extra-curricular activities.
我可没时间参加课外活动。
Forget not that you are a man.
不要忘记你是一个人。
They feared that the mummy would fall to pieces when they cut it open, but fortunately this has not happened.
他们曾担心在把木乃伊切开后，它会散成碎片，但幸运得很，这种情况并未发生。