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
I continued to teach piano lessons at home.
我继续在家教钢琴。
I was this close!
就差那么一点。
My name is Chen Sung-lim.
我叫陈松林。