应用思考-教育技术论坛

标题: reciprocity [打印本页]

作者: etthink 时间: 2023-10-11 03:04
标题: reciprocity
reciprocity
a situation in which two people, countries, etc. provide the same help or advantages to each other

欢迎光临应用思考-教育技术论坛 (http://etthink.com/)