whetstone

I sharpen the blade on the whetstone.

私は砥石で刃物を研ぎます

I sharpen the blunt blade on the coarse whetstone.

私は粗い砥石で切れ味の悪い刃物を研ぎます

I sharpen the blunt blade on the coarse whetstone in the workshop.

私は作業室で粗い砥石で切れ味の悪い刃物を研ぎます

I sharpen the blunt blade on the coarse whetstone in the workshop on Sunday.

私は日曜日に作業室で粗い砥石で切れ味の悪い刃物を研ぎます

I sharpen the blunt blade on the coarse whetstone in the workshop with my father on Sunday.

私は父と日曜日に作業室で粗い砥石で切れ味の悪い刃物を研ぎます