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Converts to beta - carotene, which is needed to maintain eye health.是什么意思？

Converts to beta - carotene, which is needed to maintain eye health.

能转化成乙种胡萝卜素, 维持眼睛健康.

相关词汇
converts to beta carotene which is needed maintain eye health

converts

v. （使）转变( convert的第三人称单数 )，（使）转化，皈依，改变（信仰）；

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

beta

n. 贝塔，希腊字母中的第二个字母；

carotene

n. 胡罗卜素；

which

pron. 哪一个，哪一些，哪个，那，指前面提到的事物；adj. 哪一个，哪一些；

is

vt.& vi. 是（be的三单形式；n. 存在；

needed

v. 需要，必须( need的过去式和过去分词 )，（表示应该或不得不做）有必要；

maintain

vt. 保持，保养，坚持，固执己见；

eye

n. 眼睛，视力，眼状物，风纪扣扣

health

n. 健康状况，卫生，保健，昌盛，兴旺；
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