蜡

古人在夜晚读书时常常点燃桌案上的红蜡烛，昏黄摇曳的蜡光照亮了寒窗苦读的学子。

gǔ rén zài yè wǎn dú shū shí cháng cháng diǎn rán zhuō àn shàng de hóng là zhú, hūn huáng yáo yè de là guāng zhào liàng le hán chuāng kǔ dú de xué zǐ.

The ancients often lit red candles on their desks when they were studying at night. The dim and flickering wax light illuminated the students who were studying hard outside the cold window.