put on a long face
Sad face, a Chinese idiom, Pinyin is k ū s ā ngzheli ǎ n, which means that the heart is not happy and the face is not happy. It's from 20 years of witnessing.
The origin of Idioms
The seventy fourth chapter of Wu Jianren's twenty years of witnessing the strange situation in Qing Dynasty: "the old man was in tears. He didn't know what to say. Master Fu was furious. He lifted the one legged table, roared and turned everything on the table."
Idiom usage
I'm not happy. I'm not happy. Chapter 10 of the third volume of Lu Yao's ordinary world: "Jin Guangming knelt down in front of the old landlord's grave and began his ancestor worship ceremony with a sad face."
put on a long face
Aconite white, horse born horn - wū tóu bái, mǎ shēng jiǎo
one 's high morality reaching up to the clouds - gāo yì bó yún
Advance the virtuous and retreat the foolish - jìn xián tuì yú
quickly change and start another plan - fān rán gǎi tú