1. 1〔2倍〕
    • 5の倍は10だ
    • Twice [Two times] five is ten.
    • 彼の部屋は私の部屋の倍の広さだ
    • His room istwice as large as [twice the size of] mine.
    • その機械を使えば倍の仕事ができる
    • We can do double the work by using that machine.
  1. 2〔…倍〕times
    • 5を何倍すると100になるか
    • What times 5 is 100?
    • この木はあの木の2.5倍の高さだ
    • This tree is two and a half times 「as tall as that one [the height of that one].
    • 物価が2倍,3倍と上がったので支払いに困った家族が多い
    • Prices doubled and then tripled, and many families couldn't pay their bills.