Acoustic duct
[醫] 外耳道
?? 詞語組成解析
acoustic
[?'ku:stik]
adj. 聽覺的;聲學的;原聲的;音響的;
duct
[d?kt]
n. 管，導管;（電線，電纜等的）管道;
vt. 用導管輸送;用管道供應;
??? 情景例句
No, you're way out of line this time.
不行，這一次你做得不合規矩。
At your request, we are offering you the following items. This offer will remain open within 3 days.
應你方要求，我方就如下產品報價，此報價3日內有效。
What's it used for?
有什么用途？