This book will be very useful; it will supply a need that has been felt for years.

这本书很有用，它将满足人们多年来的需要。

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Researchers need a growing supply of corpses for dissection.

研究者们为了解剖需要越来越多的尸体。

《柯林斯英汉双解大词典》

The storage pools, which contain used fuel rods, also need a constant supply of water.

用来存放核废料的储存池也需要立刻灌水冷却。

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He also needed time to organize a supply system to get to his forces the guns, bullets,food, and clothing they would need.

VOA: special.2009.08.27

Among today's data-storage devices, magnetic tapes can degrade within a decade, while hard disks are expensive and need a constant supply of electricity to hold their information, creating huge need for power for the "data farms" behind cloud computing.

WSJ: Scientists Store King Speech, Shakespeare Sonnets in DNA

If the science can be perfected, there would be a need for a huge supply of pancreatic cells.

FORBES: The 2005 Investment Guide

In a capitalist system, you need a replenishable supply of entrepreneurs willing to take risks.

FORBES: Nassim Taleb's 'Antifragile' Celebrates Randomness In People, Markets