| 单词 | pitch opal |
| 释义 | Definition of pitch opal in English:pitch opalnoun Mineralogy rare
OriginMid 19th century; earliest use found in Henry William Bristow (1817–1889), geologist. Definition of pitch opal in US English:pitch opalnoun Mineralogy rare
OriginMid 19th century; earliest use found in Henry William Bristow (1817–1889), geologist. |
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