海水含有盐分。

Sea water contains salt.

《新英汉大辞典》

死海明亮而稍带一点奇怪的蓝色调，这部分是因为海水被四周红色的群山所包围，部分因为海水中盐分很高，并含有其他矿物质。

This is partly because the water is framed in red by the surrounding mountains, partly because it is supercharged with salt and other minerals.

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