Each addition to the development case should be balanced with the expected benefits in terms of time saving, quality gain, or providing a basis for project estimation, planning, and scope management.
向开发案例中添加的每一项元素都应该根据期望的效益进行平衡，您需要考虑的方面包括：时间节省、质量获得，或为项目评估、计划和范围管理提供的基础。
While a multivitamin is a good addition to any balanced diet, individual supplements and vitamin pills may not be as well absorbed by the body as nutrients in foods.
虽然多种维他命剂是对均衡饮食的有益补充，但人体对单独的补充剂和维他命片剂的吸收情况不如食物中的营养那么好。
Several studies have not been able to show that taking vitamin supplements in addition to a balanced diet helps to prevent disease.
数项研究未能证实为了平衡膳食服用维生素片有助预防疾病。
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