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1·The lake is also visited by seals in the summer.

夏天也有海豹游到这湖里来。《牛津词典》

2·A woman picks them up and seals them in plastic bags.

一位女士拣起它们，然后把它们封入各塑料袋中。《柯林斯英汉双解大词典》

3·They're called elephant seals.

它们被称为象海豹。

4·Seals have very special noses.

海豹有很特殊的鼻子。

5·He knows a lot about seals.

他知道一些关于海豹的事情。

6·We can see the seals there.

我们可以在那里看海豹。

7·A trainer throws fish to his seals.

驯兽人把鱼儿扔给他的海豹。

8·Seals have only gone part way back.

海豹只往回走了一点。

9·Seals live in the ocean.

海豹在海里生活。

10·Cats don't hunt seals.

猫不捕食海豹。

(1)seal of证明；保证

(1)mechanical seal[机]机械密封

(1)oil seal油封

(1)seal in封入

(1)seal ringn. 印章戒指

(1)rubber sealn. 橡胶密封圈；橡皮垫；橡胶塞；橡皮密封