这个词是什么意思？
The bestowing of tangible or intangible benefits, voluntarily and usually without expectation of anything in return. However, gift giving may be motivated by feelings of ALTRUISM or gratitude, by a sense of obligation, or by the hope of receiving something in return.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D037921 · MeSH 2026。
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