The pinyin for acid is suān, the vowel is s, and the rhyme is uan. acid group words include: pungent, heartfelt, sour, acrid, and poor.

I. Xin sour [ xīn suān ]?

Spicy and sour, a metaphor for pain and sorrow.

Citation and explanation: Sun Li's Baiyangdian Chronicle-Visiting the Resistant Family: "Her life is full of the infinite bitterness of the poor people and their sons and daughters."

The heart is sour [ xīn suān ]?

Sadness in the heart.

Citation and explanation: Yu Dafu's "Thin Dien": "I stood for a while in the gray air of the doorway, and suddenly remembered my own family's birth, and was unconsciously sour in my heart."

Three: Sour Chu [ suān chǔ ]?

Sour and bitter.

Citation and explanation: Zhou Libo "Stormy Weather" Part 1, 20: "His heart welled up with a burst of sourness, and his eyes moistened."

Four, acrid [ jiān suān ]?

To speak in a prickly way, making it difficult.

Citation and explanation: Cao Yu's "The Peking Man", Act I: "Zeng Siyi (acerbically): 'I think the painting is only good! Really, how elegant!'"

V. Poor and sour [ qióng suān ]?

Poor and pedantic. In the old days, it was used to call a poor scholar.

Citations and explanations: Sichuan Opera's "The Tale of the Willow Shade", Scene 5: "The Ma family is a government official, but Shan Bo is a poor scholar."