d
释义
英语字母表中的第四个字母;
（学生成绩）丁;
例句:
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I'd love to see the exact questions asked.
来自BBC
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I'd far sooner the word impairment was used.
来自BBC
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I'd always done a lot of stills photography.
来自BBC
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Butter, margarine, and oily fish are all good sources of vitamin D.
黄油、人造黄油和多脂鱼都含有丰富的维生素D。
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In figure 24 "D" denotes quantity demanded and "S" denotes quantity supplied.
在图24中，D代表需求量而S代表供应量。
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Milk, oily fish and egg all contain vitamin D.
牛奶、油性鱼类和鸡蛋都含有维生素D.