a gold field的用法和样例：
- She had the sapphire set in a gold ring.
- She has a gold chain about her neck.
- a miner who digs or pans for gold in a gold field.
- a miner who digs or pans for gold in a gold field
- Jack was decorated with a gold medal.
- The diamond was set in a gold ring.
a gold field的相关资料：