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woven mat (esp. one made of straw)
seat
むしろを庭に敷いて座った。
I spread a straw mat in the garden and sat down.
縁側にむしろを敷いて涼んだ。
I spread a straw mat on the veranda to cool off.
古いむしろを新しいものに替えた。
I replaced the old straw mat with a new one.