Underfloor raceway
[计] 地板下通道
🧩 词语组成解析
[计] 地板下
n. 水道, 座圈\\n[电] 槽板
🗣️ 情景例句
... and I do need some advice on a difficult problem.
……我的确有一个难题要请教你。
Who is he?
他是谁？
He is heavily insured against death.
他给自己投了巨额的人身保险。