Limestone is colloquially called cyan stone.是什么意思？

Limestone is colloquially called cyan stone.

石灰岩的俗称是青石.

limestone

n. 石灰岩，石灰石；

例句
Between the white limestone and the greyish pink limestone is a thin bed of clay.
在白色石灰石和粉灰色石灰石之间是一层薄薄的黏土。

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

colloquially

adv. 用白话，用通俗语；

例句
The people who write parking tickets in New York are known colloquially as "brownies".
在纽约，开违章停车罚单的人俗称为“棕佬”（brownie）。

called

v. 叫( call的过去式和过去分词 )，通电话，认为，估计；

例句
He has also called for an acceleration of political reforms.
他同时呼吁加快政治改革的步伐。

cyan

n. 青色，蓝绿色（用于印刷），氰基；

例句
Limestone is colloquially called cyan stone.
石灰岩的俗称是青石.

stone

n. 石头，宝石，矿石，（膀胱或肾脏中的）结石；vt. 向扔石块，用石头铺，以石掷向，除（水果的）硬核；adj. 石制的，石头似的，[S-]石器时代的，粗陶制的；adv. 石一般的；

例句
I waved goodbye and went down the stone harbour steps...
我挥手告别，然后走下港口石阶。