Central downcomer
[化] 中心降液管; 中央循环管
🧩 词语组成解析
n. 下水管, 下导管
🗣️ 情景例句
Where are you going during Summer vacation?
暑假你打算去哪儿？
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
Goodbye.
再见。