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'd like to make an appointment with him.
我想跟他约个晤谈时间。
He always takes pride in his work.He's very efficient.
他总是以他的工作而自豪，他是非常能干的。
You'd better go to bed earlier tonight, if you can.
如果可能，你今晚最好早点儿睡觉。