After a while somebody stirred inside, and with a bewildered face Miss Rottenmeier appeared, staring at the unexpected visitor.

过了一会儿，里面有人动了一下，罗特麦耶小姐出现了，她一脸困惑，瞪着这个不速之客。

youdao

This deep sea creepy-crawly gave oil workers a fright, after the unexpected visitor hitched a ride on a submarine sent from a rig in the Gulf of Mexico.

当这个不速之客搭乘了一艘从墨西哥湾钻井平台发出的潜艇后，这种深海爬行动物吓了石油工人一跳。

youdao

On the very day of my coming home from Longbourn, your uncle had a most unexpected visitor.

就在我从浪搏恩回家的那一天，有一个意想不到的客人来见你舅父。

youdao

Apart from a better understanding of the frescoes, the visitor's 100-foot climb offers an unexpected bonus, to be claimed by turning away from the paintings and looking out on the body of the church a view that will be impossible once the scaffolding comes down this fall.

WSJ: A Heavenly View From On High | Basilica of Santa Croce | Agnolo Gaddi | By Francis X. Rocca

Extensions would only be granted if a visitor could show an unexpected or compelling reason, such as the need for medical treatment or a delay in completing a business matter, one official said.

BBC: The Grand Canyon