如果你在海里游泳，你知道海水是咸的。
If you have swum in the sea, you know that the sea is salty.
这就是原因(有人说)为什么海水是咸的。
That is the reason (some people say) why the water of the sea is salty.
第二，海水是咸的。
海水是咸的。
海水是咸的。
海水为什么是咸的？
第二是与海水有联系的咸化湖和盐湖阶段；
The second is associated with the water of the lake and a Salt Lake stage.
海洋覆盖了整个地球面积的三分之二，但是海水是（咸的）…也就是说，…
More information about water The oceans cover two thirds of Earth , but…
海洋覆盖了整个地球面积的三分之二，但是海水是（咸的）…也就是说，…
More information about water The oceans cover two thirds of Earth , but…
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