Wetted-wall column
[机] 湿壁塔
🧩 词语组成解析
wet的过去式和过去分词
column
['kɑləm]
n. 纵队，列;圆柱;专栏;
🗣️ 情景例句
but he has chickens and cows and all.
但他有奶牛等等。
Learn to walk before you run.
循序渐进。
Is this a book?
这是一本书吗？