benefactorn.
英 'benɪfæktə | 美 'bɛnɪfæktɚ
中文n. 恩人；捐助者；施主
词根词源
benefactor (n.)mid-15c., from Late Latin benefactor, from Latin phrase bene facere, from bene "well" (see bene-) + facere "to do" (see factitious). Translated in Old English as wel-doend.
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