submarine
/ˌsʌbməˈri:n; ?@ ˈsʌbməri:n; `sʌbməˌrin/ n
1 naval vessel that can operate underwater as well as onthe surface 潜（水）艇
[attrib 作定语]
a submarine officer,crew 潜艇军官、 全体官兵.
2 (also ,submarine `sandwich) (esp US) sandwich made from a long bread roll split lengthwise and filled with meat, cheese, salad, etc 潜艇三明治（长面包纵向切开, 夹肉、 乾酪、 色拉等）. submarine, adj [attrib 作定语]
(existing or placed) under the surface of the sea （存在或置於）海面下的
submarine plants 海生植物
submarine exploration 海中探测
a submarine cable 海底电缆.