toss-up的意思
名词
1. The election was a toss-up, the winner still hasn't been determined.
这场选举胜负难分，截至目前还不知鹿死谁手。
1. (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.
e.g. 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。
noun
1. toss-up在线翻译
1. an unpredictable phenomenon
e.g. it's a toss-up whether he will win or lose
Synonym: tossup even chance