was able to/could1

所屬欄目:英語常見問題解答

【問】 (1)Gauss was able to show by a theoretical analysis that the field arose within the solidearth...(北大《英語》(三),P.101)[原譯]高斯通過理論分析能夠證明場(chǎng)是在地球?qū)嶓w內(nèi)產(chǎn)生的……(教參)(2) After years of difficulty,Whittle was,however,able to build his firs ......(本文共 2085 字 )     [閱讀本文] >>


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