n.潜艇( submarine的名词复数 )；submarine sandwich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）； 英英释义： submarine[ 'sʌbməri:nz ]n.a submersible warship usually armed with torpedoes同义词：pigboatsubU-boata large sandwich made of a long crusty roll split lengthwise and filled with meat