使必需
双语例句原声例句
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他们发现，食品生产方法的变化，使必需脂肪、维生素和矿物质消费量减少，食品中的营养平衡发生了改变。
They found that changes in the way food is produced have reduced the amounts of essential fats, vitamins and minerals consumed, and have altered the balance of nutrients in foods.
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一场持续的干旱使定量供水的引进成为必需。
A prolonged drought had necessitated the introduction of water rationing.
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所执行的代码只需创建一个新的文档以及所有必需的字段，使它成为一个功能完整的日志文档。
The code that gets executed only has to create a new document with all the necessary fields to make it a full-fledged journal document.
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You might think, given all this, and given the ultimate plot of On the Road, that being on the road is about pursuing that kind of desire, and that it is necessitated by leaving home: you have to leave home in order to pursue that desire.
你们可能觉得，所有这些，以及《在路上》的最终情节，关于在路上就是追寻这种渴望，这就使离家成为必需：,你必须得离开家才能追求那渴望。
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