2. Economy the poor man's mints; extravagance the rich man's
pitfall. (Martin Tupper. American economist.
节约是穷亼白勺造币厂﹐浪费是富亼白勺陷阱.(美国经济学家塔珀。M。
3. Knowledge Service:An"Operational Pitfall"?——A Discussion on Knowledge Service as the Core Competence of Libraries.
知识服务是否是“操作陷阱”?——关于知识服务能否作为图书馆核心能力的讨论。