periscopic
adj. 周视的,展望的;潜望镜的;广角的
例句
His costume, a children's TV character called Brian, was equipped with a periscopic camera to see where he was going.
他的装束是儿童电视节目中的一个叫布莱恩(Brian)的角色,设备上安装了一个潜望镜,可以随时查看它到达的地方。