bluestone
N หินทราย สีน้ำเงิน
BLUESTONE
BLUESTONE Blue "stone ` (, n.
blue stone |ˈblo͞oˌstōn ˈblustoʊn | ▶noun any of various bluish or gray building stones. • any of the smaller stones made of dolerite found in the inner part of Stonehenge.
blue |stone |ˈbluːstəʊn | ▶noun [ mass noun ] any of various bluish or grey building stones. • [ count noun ] any of the smaller stones made of dolerite found in the inner part of Stonehenge.