Something that seems trivial or of little intrinsic value can become extremely precious and indispensable when it is urgently needed for a crucial purpose, highlighting how value is often context-dependent.
在危急关头，哪怕是一句简单的鼓励，也可能如千金一壶般宝贵，给予人莫大的力量。
In a critical moment, even a simple word of encouragement can be as precious as 'a thousand gold for one gourd', providing immense strength.
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