雨後春筍 [－后－笋]

Jyutping jyu5 hau6 ceon1 seon2
Pinyin yǔ hòu chūn sǔn

Definitions (CC-CEDICT)
  1. lit. after rain, the spring bamboo (idiom); fig. rapid new growth
  2. many new things emerge in rapid succession
Definitions (粵典–words.hk)
  1. 名詞
    春​筍​喺​雨​後​生​得​又​多​又​快​，​比喻​事物​喺​某​個​時​期​後​大量​湧現​，​迅速​發展
    new things come out in a large amount quickly
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）