Electret transducer
[电] 驻极体换能器
🧩 词语组成解析
n. [电]驻极体, 电介体
transducer
[trænz'dju:sə]
n. 传感器，变频器，变换器;
🗣️ 情景例句
Oh, Grandpa! How exciting!
啊 ，爷爷， 你真了不起。
Oh, it's a shame that you have to leave.
哦，真遗憾，你非走不可呀。
I've never met him but I've talked to him on the net.
我没见过他，但我和他在网上聊过天。