| 单词 | gold deposit |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔alluvial〕They were looking for water, but stumbled upon one of the richest shallow alluvial gold deposits ever found.他们当时在找水, 却意外发现了迄今为止储量最为丰富的浅层冲积砂金矿床之一。外研社新世纪 |
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