聚ㄐㄩˋjù螢ㄧㄥˊyíng映ㄧㄥˋyìng雪ㄒㄩㄝˇxuě

形容在困苦的環境中奮發讀書。《北史·卷八八·隱逸傳·崔廓傳》：「未嘗聚螢映雪，懸頭刺股，讀論唯取一篇，披莊不過盈尺。」也作「映雪囊螢」。

英lit. to collect fireflies and study by their light (idiom); fig. ambitious student from impoverished background, burning the midnight oil