a silver ingot的用法和样例：
- Trinket took out a silver ingot and juggled it in his palm.'I've got itchy fingers,' he said.
- She wore a silver chain around her neck.
- She won a silver trophy for shooting.
- She was born with a silver spoon in her mouth.
- There is not a silver hair on her head.
- He heard a silver laughter from the next room.