a red-throated diver的用法和样例：
- Wang, a kindly weathered man in a long white coat, determined that the boy had a red throat and a fever of 102.He had a cold, one that would almost certainly pass on its own in a few days.
- 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.
- Keep on go till you come to a red brick building.
- I have a red tracksuit with fleecy lining.