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floor
stage (for the narrator and the shamisen player)
dining platform built across a river
新しい家の牀はピカピカだった。
The floor in the new house was sparkling clean.
牀に座って本を読むのが好きだ。
I like sitting on the floor and reading.
子どもが牀の上で走り回っている。
The kids are running around on the floor.