(一). It's a toss-up. 可能性一半一半吧。
原音重现：

A: Would you like a sandwich or cereal?
你要吃三明治还是麦片粥？
B: It's a toss-up. I’m not sure which I want to eat now.
各半吧，我也不知道自己现在想吃什么。

(二).What are the odds? 可能性怎样？
原音重现：
A: Did you hear that Rob won the marathon?
你听说罗布贏了马拉松比赛了吗？
B： But he is so slow. What are the odds of him winning?
跑得太慢了，他获胜的概率有声大？