Acoustic amplifier
[电] 声放大器
🧩 词语组成解析
acoustic
[ə'ku:stik]
adj. 听觉的;声学的;原声的;音响的;
🗣️ 情景例句
I don't understand. Did you exercise or not?
我搞不懂 ，你到底作了健身操没有？
I've got a slight pain in my teeth.
我的牙有点痛。
What do I have to do if I want to be thinner?
如果我想瘦一点的话，我得怎么做呢？”