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

These late stone Age settlers had finely polished stone tools, and they had domesticated cereals and sheep.

查脱户耶克的居民生活在石器时代晚期，不仅会制造细致的磨制石器，也已经驯化了谷类与羊。

youdao

It wasn't just the beauty of the polished stone block walls or the fact that this abandoned city sits atop a narrow ridge more than 2400 meters above sea level.

VOA: standard.2009.12.15

An open hatch in the polished stone floor leads down to the water beneath and a small natural pool.

WSJ: A Marriage of Nature and Art

We sit out front, on stone steps polished smooth from centuries of just such sitting, and dine whilst watching locals pass by.

BBC: Turkey��s best-kept secret

Using computerized measuring equipment, the AGS verified that each stone was cut and polished to rigorous standards.

FORBES: Stones on fire