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 think I've caught a cold.
我觉得我感冒了。
I ought to go now.
我应该现在走。
The sight of the dead body scared him stiff.
看到尸体把他吓僵了。