Here’s a free resource for learning Chinese. This series focuses on idioms and proverbs, useful for various expressions. Today’s topic is 「沉屙宿疾」, as shown below.
The idiom 「沉屙宿疾」 and its usage are explored below. Learn its meaning and applications here.
Xi: illness; Su: long-lasting. Refers to serious illness and old age diseases. It also refers to social evils that have become serious and harmful over a long period of time.
The Mandarin pronunciation of this idiom is :
chén kē xiǔ jí
while its Cantonese pinyin is :
cham4 o1 suk1 jat6
The treasure trove of Chinese idioms is extensive, with different expressions suited for various situations. We hope these free resources will aid you in your journey to mastering Chinese.

