Nick Kelble and Haley Roll may be the most talked-about couple to get engaged this week, thanks to a baby hippo named Fiona.
因为一只名叫菲奥娜的小河马，尼克·凯尔布与海莉·罗尔可能是本周订婚的情侣中被人们谈论最多的一对。
In pictures of their proposal posted on Instagram, Kelble is down on one knee, presenting a ring to a smiling Roll.
在发布于Instagram的求婚照片中，凯尔布单膝跪地，将戒指递给微笑着的罗尔求婚。
Between the couple, looking out of the glass enclosure where she lives at the Cincinnati Zoo, is Fiona.
在这对爱侣中间，有一只小河马隔着玻璃墙围观，她就是住在辛辛那提动物园的菲奥娜。

"We're so happy Fiona could be there on our special day. Here's to many more years of going to zoos with you," Roll wrote in the photo caption.
罗尔在照片配文中写道：“我们很高兴在这个特别的日子里，菲奥娜能在场。致今后我和你一起去动物园的岁月。”
They were visiting the zoo for their one-year anniversary.
他们来到动物园是为了庆祝一周年纪念日。
They had been following the story of the young hippo since she was born six weeks premature in January but it was first time they were going to see Fiona in person. The couple will be married in 2019.
这只小河马于1月出生，早产了6周，自那时起这对情侣就一直关注着她的故事，不过当天还是他们第一次亲自来看菲奥娜。这对情侣将于2019年完婚。