1、胜败各半
...toss up 掷钱币(匆忙准备)...even chance 胜败各半(成败相等)...chance 可能性 ...
an even chance detail可能性相等
an even chance可能性相等
an even chance of winning分数相等的
toss-up even chance原意为抛硬币
toss-up- even chance引申为“对半开的机会
chance even机会均等
not even a dog's chance一点机会也没有;翻译
Hot even a dog's chance毫无机会