rosetta stone

美 [rəʊ'zetə]

英 [rəʊ'zetə]

权威英汉双解

Rosetta stone

1.	有助于解释神秘事物（或未知领域）的事物；有启示作用的发现something, especially a discovery, that helps people to understand or find an explanation for a mystery or area of knowledge that not much was known about

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