Backward flow problem
[计] 逆向流问题
🧩 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
Where can we find a good restaurant?
我们在哪儿能找到一个好餐馆？
Self-confidence is the first requisite to human greatness.
人类的伟大，首要的是要有自信。
It's a secret between you and me.
这是你我之间的秘密。