able to live both on land and in water （生物）水陆两栖的 (of military operations 军事行动 involving soldiers landing at a place from the sea 两栖作战的；登陆的 an amphibious raid/assault 两栖突袭/袭击
suitable for use on land or water 水陆两用的 amphibious vehicles 水陆两用车辆
Word Originmid 17th cent.: from modern Latin amphibium, from Greek amphibion (noun use of amphibios ‘living both in water and on land’, from amphi ‘both’ + bios ‘life’) + -ous.