What do know about the sea? Some people have seen it but others haven't. The sea looks beautiful on a fine sunny day and it can be very tough when there is a strong wind. What other things do you know about it? Of course, the sea is very large. In the world there is more sea than land. If you have swum in the sea, you know that the sea is salty. Rivers carry salt from the land into the sea. Some places of the sea are saltier than the other places. Do you know the Dead Sea? It is so salty that you can't sink when you are in the water! And fish cannot live in it!

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　　关于海洋有什么了解?有些人见过它，但有些人还没有看到。在晴朗的天气里，大海看起来很美，大风时会很困难。你还知道其他什么事情吗?当然，大海很大。世界上有比陆地更多的海洋。如果你在大海中游泳，你知道海水是咸的。河流把盐从陆地运到海里。有些地方的海水都比其他地方的咸。你知道死海吗?它太咸了，当你在水里的时候你是不会下沉的!鱼不能生活在里面!