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amount to be borne; one's share (of expenses)
手術の自己負担金が思ったより高かった。
My out-of-pocket share of the surgery costs was higher than expected.
工事の負担金は住民が折半することになった。
The residents ended up splitting the construction cost equally.
震災で壊れた共用施設の修繕負担金が住民に請求された。
Residents were billed for their share of repairing the communal facilities damaged in the disaster.