Water found in nature with some dissolved salts present ,present这里是什么意思?整句话的意思不就是：从自然界中找到的含有溶解的盐的水.与present有什么关系
人气：486 ℃ 时间：2020-04-19 00:52:19
解答
这里理解为 存在
自然界中的水,都存在着一点被溶解的盐
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