Yǒuxiē shǎoshù mínzú cūnzhài hái bǎoliú chōng cíbā de xísú.
In some ethnic villages people still pound glutinous-rice cakes.
Tips
memory
Picture two hands working a pestle down into a 臼 (a mortar): the bottom element IS the mortar, and the strokes above are the hands raising and dropping the pestle to pound grain.
The top is a stylised residue of two hands gripping a pestle; it no longer maps to an independent character but conveys the pounding action over the mortar below.