柯林斯詞典periscope /?p?r??sk??p/ (periscopes) 1. N-COUNT A periscope is a vertical tube that people inside submarines can look through to see above the surface of the water. 潛望鏡 返回 periscope劍橋詞典a long , vertical tube containing a set of mirrors that gives you a view of what is above you when you look through the bottom of the tube 潛望鏡 Periscopes are used in submarines to allow you to look above the surface of the water . 潛水艇上裝有潛望鏡，通過它可以觀察水面以上的情況。 返回 periscope