1·The 'b' had been wrongly written as a 'd'.
b错写成d了。
—— 《牛津词典》
2·Milk, oily fish and eggs all contain vitamin D.
牛奶、油性鱼类和鸡蛋全都含维他命D。
—— 《柯林斯英汉双解大词典》
3·Lack of vitamin D is another factor to consider.
缺乏维生素D是另一个需要考虑的因素。
—— 《柯林斯英汉双解大词典》
4·Vitamin D is necessary to aid the absorption of calcium from food.
从食物中吸取钙需靠维生素D的帮助。
—— 《牛津词典》
5·This special form of vitamin D is naturally present in breast milk.
这种特殊形式的维生素D天然存在于母乳中。
—— 《柯林斯英汉双解大词典》
6·D is for dry.
D是干燥的意思。
7·Please complete the summary of paragraphs C and D below.
请完成下面 C 和 D 段的总结。
8·Foods such as eggs and oily fish are all rich in vitamin D.
鸡蛋和油性鱼等食物都富含维生素D。
9·D Day is celebrated to memorize the Normandy landings in France on June 6, 1944.
D 日是为了纪念1944年6月6日在法国的诺曼底登陆。
10·Three other types of airspace, Classes D, C and B, govern the vicinity of airports.
其他三种领空，D、C 和 B 类，管理着机场周围地区。