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've still got a ton of paperwork left to do.
我有成吨的工作要做。
I know he will be able to find way home.
我知道他会找到回家的路。
A drink? We've only just started! There are twenty more trees to be planted!
喝水？我们才刚刚开始！还有20多株树要种呢！