Flame propagation
[机] 火焰传播
🧩 词语组成解析
propagation
[,prɑpə'geʃən]
n. 传播，传输，蔓延，扩展，波及深度;〔生〕繁殖法，〔地〕传导;宣传;培养;
pro 很多 +pag=pact紧的+ation 表名词 →人或物的密度很大→传播，繁殖，增殖
🗣️ 情景例句
Do you remember
你记得
This week he took his first vacation from work in five years.
五年来，他本周破例第一次休假。
At present I'm giving a lot of concerts.
现在我还要开一些音乐会。