Gǔrén rènwéi, jīngzhé de chūnléi huì bǎ dōngmián de chóngzi jīngxǐng.
People in the past believed the spring thunder at the Awakening of Insects woke the hibernating insects.
Tips
history
It was first called 启蛰 "opening of hibernation". Under the Han, 启 was replaced with 惊 "to startle" to avoid writing the personal name of Emperor Jing, 刘启.
