英语词汇“旋石”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	旋石
释义	旋石 xuán shí一種古代軟體動物的化石。殼扁平，上有橫隆脊，殼口旁有耳。年代約在侏羅紀及白堊紀之間。
随便看	Optimism Measurement optimised optimised burning optimised coagulation optimised design optimised execution optimised management optimised process optimises optimise structure optimise the objective function optimising Optimising aggregate gradation optimising compiler optimising design Optimis m of Humanity optimism on science and technology Optimism operation Optimism-pessimism Scale optimism project optimisms optimism that permeates a group optimist optimist and pessimist which good optimist and pessimist which good?