• 有益的一生

usefullyadv.有用地usefuladj.有用的；有益的；实用的usefulness for decision making决策有用论Usefulness - based selection信息最大化选择usefulness of decision-making决策有用性usefulness for decision-making决策有用性Useful Life Determination Program战术轮式车辆寿命测定计划(美国陆军)Useful Examples of English Resumes英语简历实用范例useful applications of calculus.有用的微积分应用软件。Useful Expressions in some respects在某些方面Useful marketing concepts for flirts有用的调情求婚销售构思Useful Expressions for English Resumes英语简历有用词句

1. This means that your archers and horsemen have a very long shelf life.
   这意味着你的弓箭手和骑手可以有很长时间的有效期。
2. The plan will be agreed with forestry authority designated by SFD, to be implemented during the project life.
   该计划将在项目的有效期内，取得陕西林业局所指定的林业当局的同意，才能得以实施。