seal¹/siːl/

n. a large animal that lives by the sea in cold areas

n. [C] 海豹：Seals are excellent swimmers but don't walk well on land. 海豹是游泳好手，但在陆地上走路却不怎么行。

音组-eal/-iːl/

deal; meal; seal; steal; veal

v. close sth tightly so that air or liquid cannot get in or out

v. [T] 封，密封：seal an envelope 封好信封

◇He sealed the jar and threw it into the sea. 他把罐子密封好，然后扔进了海里。