http://www.youtube.com/watch?v=tugmHJuUv9g 0:37 that means all of Arnold's and Maria's earnings over the past 25 years will be divided 50/50 半々に分ける
http://www.youtube.com/watch?v=QATc4cG2cF4 2:15 chances of long term survival were 50/50 at best. 肺移植がうまくいったとしても長期生存の可能性はよくて50パーだ。