And the wind and waves change it all the time. There's lots of interesting science to discover at the beach.
风浪一直在改变着海滩的面貌,这里有许多有趣的科学知识等你去发现。
And the wind and waves change it all the time.There's lots of interesting science to discover at the beach.
风浪一直在改变着海滩的面貌,这里有许多有趣的科学知识等你去发现。
We know the sun contains lots of helium, and as the solar wind has been depositing helium into the rocky surface of the moon, perhaps we can extract it.
我们知道太阳包含大量的氦,而太阳风将氦沉积在月球岩石表面的,也许我们可以提取它。
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