Pneumatic speaker
[电] 压气扬声器
🧩 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
You must be very tired after the journey.
旅行之后，您一定累了吧！
What do you mean by that?
你这话是什么意思？
He became mortally ill a few months before we had planned to go and,
就在他计划回国的前几个月，他突然身患绝症。