toss-up

n.

掷钱，难以定夺的事；

复数：toss-ups

1. Let us toss up to decide who is to begin the game.
   让我们掷钱以决定谁先开始游戏。

The toss-up.
The toss-up
The toss-up
Baseball toss-up apparatus for batting practice and game play
Micro-distance toss-up type absolute gravimeter
The Toss-up — NEJM
The Myth of a Toss-up Election
Endoscopic versus open carpal tunnel release: is it a toss-up?
Toss out the toss-up: Bias in heads-or-tails
Toss out the Toss-up