amphibian

1. N-COUNT Amphibians are animals such as frogs and toads that can live both on land and in water. 兩棲動(dòng)物

2. N-COUNT An amphibian is a vehicle that is able to move on both land and water, or an aeroplane that can land on both land and water. 水陸兩用車; 水陸兩用飛機(jī)