【上位】 a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library" 政治家やチームなどを支援する人。
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【下位】 a person who endorses a promissory note without compensation or benefit but simply as a favor to the borrower 代償も利益もなく、借り主への好意だけで約束手形に裏書きする人。
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