To reserve an item of equipment for a single purpose.
为单一使用目的而保留一项设备。
A typical module is a cohesive block of code dedicated to a single purpose.
典型的模块是具有单一用途的内聚代码块。
The Kindle is too expensive for a single-purpose device.
对于一个用途单一的设备来说，Kindle价格过高。
The Kindle is too expensive for a single-purpose device.
对于一个用途单一的设备来说，Kindle价格过高。
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