carotene

例句：

1. 1.Carotene is an essential nutrient for human health.
   胡萝卜素是人类健康所必需的营养素。
2. 2. The carotene in the food helps protect our eyes from UV rays.
   食物中的胡萝卜素有助于保护我们的眼睛免受紫外线的伤害。
3. 3. Many fruits and vegetables are rich in carotene, which can help prevent eye diseases.
   许多水果和蔬菜富含胡萝卜素，这有助于预防眼部疾病。