Acoustical filter
[电] 滤声器
🧩 词语组成解析
a. 听觉的, 声学的
filter
['fɪltɚ]
n. 滤波器;滤光器;滤色镜;[化] 过滤器;
vi. 过滤;透过;渗透;
vt. 过滤;滤除;
🗣️ 情景例句
Sweetheart, I love you more than I can say!
亲爱的，我对你的爱无法用言语来形容。
How much is it by registered mail?
挂号信要多少钱？
I like reading English books, but they're sometimes rather hard.
我喜欢看英语书，但有时候英语书相当难读。