1. 两栖动物
Amphibians are animals such as frogs and toads that can live both on land and in water.

2. 水陆两用车
An amphibian is a vehicle which is able to move on both land and water, or an aeroplane which can land on both land and water.

1. cold-blooded vertebrate typically living on land but breeding in water
aquatic larvae undergo metamorphosis into adult form

2. an airplane designed to take off and land on water

Synonym: amphibious aircraft

3. a flat-bottomed motor vehicle that can travel on land or water

Synonym: amphibious vehicle