Electret transducer
[電] 駐極體換能器
?? 詞語組成解析
n. [電]駐極體, 電介體
transducer
[tr?nz'dju:s?]
n. 傳感器，變頻器，變換器;
??? 情景例句
I'm doing it for you.
也是為你做的。
I know the boy whose father is a manager.
我知道那個男孩的父親是經理。
I didn't know he was the richest person in the world.
我不知道他是世界上最有錢的人。