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band (e.g. conduction, valence); belt (e.g. Van-Allen, asteroid, etc.)
腰に帯を巻いて着物を着たんだ。
I wore a kimono with an obi around my waist.
この帯の結び方を教えてくれる?
Can you teach me how to tie this obi?
綺麗な帯を見つけて買ってしまった。
I found and bought a beautiful obi.