1N-COUNT 鳄鱼 A crocodile is a large reptile with a long body and strong jaws. Crocodiles live in rivers and eat meat. 鳄鱼
2N-COUNT [oft NOUNof n, also inN](尤指小学生排成的)长队;(行进车辆排成的)长蛇阵 A crocodile of people, especially school children, or vehicles is a long line of them, moving together. (尤指小学生排成的)长队;(行进车辆排成的)长蛇阵 [British]
The children walk in crocodiles from the schoolhouse to the dining-room for lunch.