a king's ransom

基本解释

Every retired U. S. president builds a library that costs a king's ransom.
每一位退休的美国总统，都为下一代的研究建立一座花费巨款的图书馆。
zhsc.tk
To make the big bonuses sufficiently \\\'big\\\' they started out with an experiment in a place where even a psychologist\\\'s grant money is a King\\\'s ransom: rural India.
为确保奖励足够丰厚，研究者们将实验地选在了印度农村，在这里仅仅心理学家的补助就相当于一个国王的身价。

Now, you are prepared to pay a king's ransom to keep him from trial.
CENTERFORSECURITYPOLICY: Center For Security Policy
In the past, many of you would have paid a king's ransom to put Arafat on trial.
CENTERFORSECURITYPOLICY: Center For Security Policy
You will be hunted down, with almost a king's ransom on your head.
ECONOMIST: The place to be