洗沟

洗沟	xǐ gōu	to roll a ball into the gutter (ten-pin bowling)
洗	xǐ	to wash; to bathe / to develop (photographs) / to shuffle (cards etc) / to erase (a recording)
洗	xiǎn	used in 洗马
沟	gōu	ditch / gutter / groove / gully / ravine / CL:道