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
What do you do in your spare time?
你在业余时间如何消遣？
He that gains well and spends well needs no account book.
收支正当，无须记帐。
What do you have to do round the house when you're at home?
你在家时得做些什么家务事？