Definition: an animal with smooth fur that eats fish and lives near the sea Level: B2
我们可以看到海豹在海岸附近游泳。
We could see ___seals swimming near the coast.
我们乘船去观察偏远海岸上的灰海豹。
We took a boat trip to observe the grey ___seals on the remote coast.
一只好奇的海豹从水中探出头来看着我们。
A curious ___seal popped its head out of the water to look at us.
