Flow direction
[计] 流向
🧩 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
Lacks courtesy is ill-mannered.
不礼貌，举止不当。
Many hands make quick work.
人多干活快。
The question was, which one?
问题是，哪一种气体导致火灾呢？