Wall flow
[化] 壁流
🧩 词语组成解析
flow
[fləu]
vi. 流;垂;流出;（谈话、文体等）流畅;
n. 流动;滔滔不绝;涨潮;连贯;
vt. 使泛滥;淹没;排出;
🗣️ 情景例句
Christmas is coming up. Zhao Ming, let me ask you a question.
圣诞节快到了，赵明，我问你个问题。
I am on top of the world.
我高兴到了极点。
What will be the population of these countries by the end of the twentieth century?
到20世界末较发达国家的人口将是多少？