出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第100页（207字）
形容在极度惊恐时，发生错觉，稍有一点动静，就非常紧张，例败军之际，风摇树动，大家都惊惶四窜，真有草木皆兵之慨。
The defeated army retreated in such a jumpy state as to imagine every bush and tree an enemy soldier．