three hundred million
３億ドル［ポンドなど］
three months ahead
３か月先
three pairs of glasses
めがね３つ
three parts
４分の３，ほとんど
three quarters
４分の３
Three score and ten is the age of man.
人生７０年（◆聖書より）
Three strikes and you're out.
三振でアウト；３回有罪で終身刑
three times three
（ばんざい三唱などの）３度の繰り返し
Three to the fourth (power) is 81.
３の４乗は８１
three wars within a year
１年以内に３回の戦争
