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- daily useful energy 日有用得热量
- The sun gives us energy in the form of light and heat. 太阳以光和热的形式给予我们能量。
- Machines in operation are subject to loss of useful energy due to friction. 运转着的机器由于磨擦关系而会失去一些有用的能量。
- Grains: Foods like bread, cereal and rice give us energy to run and jump. 谷物：像面包、麦片，米饭这类食物能够提供我们运动的能量。
- We were having some yoghurt, other snacks and a drink to give us energy for the work-out. 我们吃些酸乳酪，零食，喝些饮料来为练习中的消耗储备能量。
- Needless to say, there are enormous engineering problems to solve in converting the heat into useful energy. 当然，要把这种热力转变为有用的能源，还有许多工程问题有待解决。
- Faeces are food that has been processed by the human digestive system to extract as much useful energy as possible. 人体的消化系统对食物进行处理，从中获取了尽可能多的有用能量，最后形成粪便。
- Nutrition and sleep are both necessary to health; this gives us rest,and that gives us energy. 营养和睡眠封健康而言均属必要；后者给予我们休憩，前者给予我们精力。
- Work and play are both necessary to health; this gives us rest, and that gives us energy. 工作和游戏对健康都是必须的;游戏给我们休息,工作给我们活力。
- Nutrition and sleep are both necessary to health; this gives us rest, and that gives us energy. 营养和睡眠封健康而言均属必要；後者给予我们休憩，前者给予我们精力。
- Even the bill's most implacable opponents acknowledged its importance in transforming US energy use. 即使最顽固的反对者也承认该议案在转变美国能源使用方式方面的重要性。
- The bakery serves us with fresh bread daily. 面包店每天都给我们提供新鲜面包。
- Sam Bodman, the US energy secretary, yesterday warned that as well as pushing inflation higher, oil prices were starting to damp US economic growth. 博德曼在开罗的一个论坛上表示：“一直以来，美国经济承受住了油价的大幅上涨，但随着（油价达到每桶）100美元，它开始对我们的经济活动水平产生影响。”
- The preparations for the lecture took a lot of effort. We worked day and night. We were tired but the delicious food prepared by the disciples gave us energy. 讲经的准备工作量很大,所以我们夜以继日地工作,有些同修烹饪了美味可口的食物,给我们补充能量,消除疲劳。
- Daily practice is the trick in learning a foreign language. 每天练习是学会一门外语的诀窍。
- Many items in daily use are made out of plastic. 有很多日常生活用品是塑料制的。
- I like to read China Daily on my way home. 我喜欢在回家的途中阅读《中国日报》。
- Improved efficiencies can be realized all along the energy chain, from the conversion of primary energy (oil, for example) to energy carriers (such as electricity) and finally to useful energy (the heat in your toaster). 效率的提升可以实现在整条能源供应链上，从初级能源（例如原油）的转换，到能源输送（例如电力），以及最后的能源使用（例如家用烤面包机）。
- I need a holiday as a relief from the daily grind. 我需要休假以摆脱单调的日常工作。
- There was a long lag in forwarding mail to us. 转寄给我们的邮件晚了很久才拿到。
