例文・使い方で印象づける「groundwork」の覚え方
スポンサーリンク..."The author has worked skilfully into his book details of the factsand inferences which form the groundwork of modern Botany... 
Cecil G. Dolmage 「Astronomy of To-day」
...However this may be, the fact remains that it is from groundwork that future investigators must build...
Edward Singleton Holden 「Sir William Herschel: His Life and Works」
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combing hungary espouse
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