tossup

It is a tossup whether we shall get there in time.

我们是否能及赶到那里还很难说。

It was a tossup between spending the night in the van and walking ten miles for help.

在客货车里睡一晚还是走上十英里求援,当实在是难。

Jennifer : It's a tossup between the foot warmer and drink warmer. With my luck, the blanket would probably catch on fire.

暖脚的和暖饮料的还真难选耶。以我的运气，毯子八成会著火。