penny black
noun /ˌpeni ˈblæk/
/ˌpeni ˈblæk/
- an old British stamp worth one penny, first used in 1840. It was the first stamp in the world that could be stuck to an envelope.
| 单词 | penny black |
| 释义 | penny blacknoun /ˌpeni ˈblæk/ /ˌpeni ˈblæk/
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