邊際收益比率邊際收益率marginal: adj. 1.邊的,邊緣的;記在欄外的,旁注的;限界的, ...income: n. (定期)收入,所得,收益。 an earned [ ...ratio: n. (pl. ratios) 1.比,比率,比值;比例 ...marginal income: 邊際收益; 邊際所得marginal ratio: 邊際比率下載手機詞典可隨時隨地查詞查翻譯