Sign propagation
[计] 符号传送
🧩 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
Good luck.
祝你好运。
There are no birds of this year in last year's nests.
事过境迁。
It looks like we have problem with the shipment.
货有问题哦。