1. Changes in technology may mean that once-valued skills are now redundant. 技术的变化可能意味着从前受重视的技巧现在变得多余了。
2. This word is redundant, it can be left out. 这个字是多余的， 可以去掉。
3. Rather than maintaining the now redundant leaves throughout the winter, the tree saves its precious resources and discards them. 这棵树并没有在整个冬天都保留现在多余的叶子，而是储存了宝贵的资源并抛弃了多余的树叶。
4. In time it should help restrain costs by eliminating redundant tests, preventing drug interactions, and helping doctors find the best treatments. 假以时日，它将通过减少多余的测试、防止药物相互作用以及帮助医生找到最佳治疗方法来帮助降低成本。
5. Enrollees would have to pay more money for many services out of their own pockets, and that would encourage them to think twice about whether an expensive or redundant test was worth it. 注册者将不得不自掏腰包为许多服务额外付费，这将促使他们仔细考虑，一项昂贵或多余的测试是否物有所值。
