磨石砂礫

millstone grit / coarse sandstone

to rub / to grind / to polish / to sharpen / to wear down / to die out / to waste time / to pester / to insist

grindstone / to grind / to turn round

whetstone / millstone

surname Shi / abbr. for Shijiazhuang 石家莊|石家庄[Shi2 jia1 zhuang1]

dry measure for grain equal to ten dou 斗 / ten pecks / one hundred liters

rock / stone / stone inscription / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

dry measure for grain equal to ten dou 斗[dou3]; one hundred liters / ancient pr. [shi2]

sand / gravel / granule / variant of 沙[sha1]

grit

gravel / small stone