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oyster

noun
🔊/ˈɔɪstə(r)/
🔊/ˈɔɪstər/
 Idioms
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  1. a large flat shellfish. Some types of oyster can be eaten and others produce shiny white jewels called pearls.牡蛎；蚝
    • Oyster beds, on the mudflats, are a form of fish farming.滩涂牡蛎养殖是一种水产养殖方式。🔊🔊
    Topics Fish and shellfishb2
    Oxford Collocations DictionaryOyster is used before these nouns:
    • mushroom
    • sauce
    • shell
    • …
    See full entry
    Word OriginMiddle English: from Old French oistre, via Latin from Greek ostreon; related to osteon ‘bone’ and ostrakon ‘shell or tile’.
Idioms
the world is your oyster
  1. there is no limit to the opportunities open to you世界是属于你的；你的前途无量
    • With talent like that, the world is her oyster.拥有这样的才能，世界就是她的牡蛎。