[N-COUNT 可数名词]潜艇(亦使用缩略形式sub) A submarine is a type of ship that can travel both above and below the surface of the sea. The abbreviation sub is also used.
...a nuclear submarine.
核潜艇
2
[ADJ 形容词]水下的;海底的Submarine means existing below the surface of the sea.
[ADJ n]
[FORMAL 正式]
...submarine caves.
海底洞穴
...submarine plants.
海底植物
3
[N-COUNT 可数名词]潜艇三明治,长卷三明治(亦使用缩略形式sub) A submarine sandwich is a long soft bread roll filled with a combination of things such as meat, cheese, eggs, and salad. The abbreviation sub is also used.
submarinesubmarinesnoun(alsoinformalsub)1a ship that can travel underwater 潜艇◆a nuclear submarine核潜艇◆a submarine base潜艇基地2(alsoˌsubmarine ˈsandwich,hero)( all NAmE) a long bread roll split open along its length and filled with various types of food 潜艇三明治,长卷三明治(用长卷面包纵向切开,内夹各种食物)adjective[only before noun ]( technical 术语) existing or located under the sea 水下的;海底的◆submarine plant life海底植物◆submarine cables海底电缆sub·mar·ine/ˌsʌbməˈriːn; NAmEˌsʌbməˈriːn/