usb single port什麼意思?

usb single port
單USB端口
雙語對照
例句:
1. The two new models do, however, have two usb ports instead of the single usb port inthe older air.
不過，兩款新電腦上有兩個usb接口，而老版air電腦都只有一個。

USB CONNECTOR   USB CONNECTOR   USB CONNECTOR

http://www.3chy3.com/?p=204

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