Diacone speaker
[电] 高低音扬声器
🧩 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
Where can I pick up my package?
我在那儿领取包裹？
Where are the stairs?
楼梯在哪里呢？
Even more processes are never patented at all but kept as secret processes.
更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。