toss-up

noun

1. （两种选择、结果等的）同样可能，均等机会
   a situation in which either of two choices, results, etc. is equally possible
   1. ‘Have you decided on the colour yet?’ ‘ It's a toss-up between the blue and the green.’
      “你决定了要什么颜色没有？”“在蓝色和绿色之间实在难以取舍。”

1. N-COUNT (发生几率各半的)相等机会;难以定夺的事
   If you say that it is a toss-up whether one thing will happen or another thing will happen, you mean that either result seems equally likely.
   1. It's a toss-up whether oil prices will go up or down over the days ahead.
      油价在今后的日子里会上涨还是下跌都有可能。

1. It's a toss-up whether oil prices will go up or down over the days ahead.
   油价在今后的日子里会上涨还是下跌都有可能。
2. Seems that informal surveys of existing shareholders have indicated the buyout vote is a toss-up, and there are strong hints that ISS will come out in opposition ( something that may sway just enough shares to matter).
   看起来对现有股东的非正式调查表明，他们对收购计划的态度莫衷一是，有明显迹象显示代理权顾问公司ISS将出面反对（也许会动摇足够的股权，让事态发生转变）。
3. For the second year in a row, US President Barack Obama led the ranking, with Forbes noting that he won the popular vote, an electoral college majority, and seven of the seven toss-up states in the November election.
   美国总统奥巴马是连续第二年登顶这一排行榜，福布斯指出奥巴马在11月大选中赢得了普选，获得了选举团的多数票，还获得了全部七个关键摇摆州的支持。
4. I'm not sure whether the headmaster will throw him out or give him a second chance. It's a complete toss-up.
   我不敢肯定校长是要开除他还是再给他一次机会。这完全是个说不准的事。
5. It's a toss-up between going to India or china.
   很难选择是去印度还是去中国。
6. Both players are equally good so it's a toss-up who will win.
   那两个运动员不相上下，谁能取胜还很难说。
7. The election is a toss-up, the winner still has not been determined.
   这场选举胜负难分，截至目前还不知鹿死谁手。
8. They are both handsome and rich, and it is quite a toss-up who will win Mary's hand.
   他们两人都又英俊又有钱，玛丽会嫁给谁，实在很难说。
9. It was a toss-up who would get there first.
   谁会先到达那里，很难说。
10. It was a toss-up which company would get the contract.
    哪个公司会得到这份合同尚难预料。
11. A good system gives you an edge in the long run, but there is a great deal of randomness in the markets, and any single trade is close to a toss-up.
    从长远来看，一套优秀的系统会给你带来一定的优势，但市场中充满了大量的随机性，任何单笔交易的成败都是难以预料的。
12. Looking further back, if you had to choose between the material progress of the 20th century and the improvements in health, it would be a toss-up.
    回顾更久远的岁月，如果你必须在20世纪物质方面的进步，和医疗保健方面的改善中进行选择，这实在是难以取舍。
13. Laura: They are both handsome and rich, and it is quite a toss-up who will win her hand.
    劳拉：他们两个帅气又有钱。玛丽会选谁，实在说不准。

noun

1. an unpredictable phenomenon
   1. it's a toss-up whether he will win or lose

   Synonym:    tossupeven chance