Celling duct
[电] 顶板线道
🧩 词语组成解析
duct
[dʌkt]
n. 管，导管;（电线，电缆等的）管道;
vt. 用导管输送;用管道供应;
🗣️ 情景例句
May I please speak to Ling Ling?
我可以和玲玲讲话吗？
By accident Marion overheard some nasty gossip.
马里恩偶然听到了一些令人不愉快的谣言。
but it was not until 1869,
但直到1869年，