rough cleaning
初洗槽 primary launder
初酸洗 black pickling ; [纺] preliminary sour
初次酸洗 first pickling
农历六月初六洗晒节 Bathing and Basking Festival
晓露鸦初洗，春荷叶半开。
Dew to wash the early crow, half open lotus leaf spring.
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