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
I got it.
我猜对了。
Yes, there is. We can give a 5% discount for orders over 5,000 units.
是的，有折扣，超过5000个我们可给5%的折扣。
It was Wednesday.
昨天是星期三。