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。

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。

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。

It was a toss-up who would get there first .

谁会先到达那里， 很 难说。

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。

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。

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。

It 's a toss-up between going to India or china .

很 难 选择是去印度还是去中国。

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。

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。

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）。

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。

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。