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1·Vitamin K is routinely given in the first week of life to prevent bleeding.

维生素K要在婴儿出生的第一周内常规性地补充以防出血。《柯林斯英汉双解大词典》

2·Vitamin K (Phylloquinone).

维生素k(叶绿醌)。

3·Vitamin K is needed for healthy blood.

维生素K是血液健康的必备，它能在伤口流血时起到凝固血液的作用。

4·Two groups of cases both adopt vitamin K agents.

两组病例均应用维生素k制剂。

5·Bacteria in the intestines normally produce vitamin K.

肠道内的细菌通常生产维生素k。

6·It has lots of vitamin c, carotenoids, vitamin K and folic acid.

花椰菜中富含维生素c、类胡萝卜素、叶酸。

7·Such vegetables also provide vitamin K, which promotes healthy bones.

这些蔬菜还提供维生素k，能促进骨骼的健康。

8·Natto is a rich source of a specific form of vitamin K called K2.

纳豆是一种具体的维生素k，被称为K2的丰富来源。

9·There were seasonal variations in plasma vitamin K in this population.

而血浆维生素K没有季节变化。

10·Vitamin K is helpful in reducing discoloration and the appearance of capillaries.

维生素k能够帮助减少污点和外观毛细血管。