"Rough" is a standard word in modern Chinese (commonly used). The pronunciation of Mandarin is cū, which was first seen in Shuowen and belongs to pictophonetic characters in Liu Shu. The basic meaning of "rough" is negligence, carelessness, such as carelessness; The extended meaning is not refined, and the material is rough, such as rough and rough.
In daily use, "rough" is often used as an adjective to express modesty. Make a careless decision, such as a rough decision.
"Coarse", first seen in Shuowen, originally meant "not refined", "coarse" and "coarse grains". The simplified version of "rough" regular script is evolved from Xiao Zhuan in Qin Dynasty.
Ancient prose: Guang Yun Qianhu cut rhyme, Canghu cut rhyme. Jade is large, slight and sparse, but not refined. Rites and the moon make the instrument high and thick.
Those who are willing to recall their angry feelings have hoarse voices. Zhuangzi's autumn waters on the coarseness of things.
Besides, Guang Yun can sit in pentameter, with good intonation. Yi tong Ji yun or change. As an ordinary fish. Ordinary work. The word originally comes from rice and deer.
Sparse. Judging from the beat and sound. Gucci.
(coarse) sparse. Daya. Sorry, a cloud. Sparse and embarrassing. This is called rice.