以目前最为标准的USB 2.0为例，它移动数据的速度更快，而且还有一些额外的电源规格。
It moves data, and in the case of USB 2.0-which is pretty much the standard now-it does it faster, and with some extra specs for power.
以目前最为标准的USB 2.0为例，它移动数据的速度更快，而且还有一些额外的电源规格。
It moves data, and in the case of USB 2.0-which is pretty much the standard now-it does it faster, and with some extra specs for power.
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