近黑色的结构是几乎可以肯定的火山灰丰富的沉积物了沙丘。

The nearly black structures are almost certainly dunes made of volcanic ash-rich sediments.

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我们对于这个上层的透明度设置为20%，这样的背景将是近黑色。

For this upper layer we set the transparency to 20% so the background will be nearly black.

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近半数受访者称，自己穿黑色衣服太多，略超半数的受访者称她们很难找到既时髦又适合自己年龄的衣服。

Nearly half said they wear too much black, and a little more than half said they have difficulty finding trendy yet age - appropriate clothes.

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