a red ocher的用法和样例：
- A cyan horse was tied beside a red ocher wall. From the slight wrinkle of the horses' nose when it sniffs the air, experienced people can feel that: Spring came.
- a red ocher formerly used as a pigment.
- A red light is usually a signal of danger.
- He wore a red carnation in his buttonhole.
- He pulled a red sweater on over his shirt.
a red ocher的相关资料：