...A thousanddetonations can produce no more effect upon the air, or upon the wateryvapor in it, than a thousand rebounds of a small boy's rubber ballwould produce upon a stonewall... 
Simon Newcomb 「Side-lights on Astronomy and Kindred Fields of Popular Science」
ランダム例文：
insurrection surveyor creche
便利！手書き漢字入力検索