A dark region or blemish, as on a polished stone.

黑斑，瑕疵黑块或黑斑，如磨光的石头上的黑斑。

youdao

A dark region or blemish, as on a polished stone.

黑斑，瑕疵：黑块或黑斑，如磨光的石头上的黑斑。

youdao

Part of the motivation for exploring the Kuiper Belt was the recognition of just how little we know about this cold, dark region at the fringe of our solar system.

对于柯伊伯带探索的动机可能部分来自与人们终于认识到，我们对太阳系边缘这片寒冷黑暗的区域实在知之甚少。

youdao

But BP's disastrous oil spill in the Gulf of Mexico has cast another dark shadow over the region.

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The Maremma (mah-REH-mah) is a place the guidebooks like to call "Tuscany's Wild West, " a once-forgotten region with dark legends of pirates and exiles, witches and plagues.

FORBES: The Other Tuscany

Mr Lloyd, who was elected as PCC in November, said child sexual exploitation was a "hugely complex issue which casts a dark shadow" across the region.

BBC: Summit held to tackle child grooming in Greater Manchester