西红柿富含番茄红素，这是一种对人体有益的类胡萝卜素。

Tomatoes are rich in lycopene, a beneficial ___carotenoid for human health.

胡萝卜含有丰富的类胡萝卜素，这是天然的抗氧化剂。

Carrots are rich in ___carotenoids, which are natural antioxidants.