马里诺是我们班上最受欢迎的学生。

___Marino is the most popular student in our class.

这位著名的足球运动员，卢卡·马里诺，刚刚赢得了年度最佳球员奖。

The famous soccer player, Luca ___Marino, just won the Player of the Year award.

这位教授专门研究海洋生物学，专注于海洋生态系统。

The professor specializes in ___marine biology, focusing on oceanic ecosystems.