Definition
To have absolutely no possibility of success or a positive outcome.
毫無機會
Under these unfavorable conditions, they don't have a ghost of a chance of winning.
在這些不利的條件下，他們沒有絲毫勝算。
If he doesn't start studying seriously, he doesn't have a ghost of a chance of passing the exam.
如果他不開始認真學習，他完全沒有通過考試的機會。
They don't have a ghost of a chance of winning the game facing such a strong opponent.
面對如此強大的對手，他們沒有絲毫贏得比賽的機會。