Velocity of propagation
[电] 传播速度
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
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
during the week--
在本 内
No rule without an exception.
没有一条规则没有例外。
He had his supper, listened to the radio, read a newspaper and then went to bed.
他吃晚餐，听收音机，读报纸，然后睡觉。