That example I gave last time with the bicycle pump was not quite the right example.

上次我举打气筒的例子不太正确。

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And that really is the bicycle pump.

这正是自行车打气筒的情况。

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Another team developed a mobile bicycle pump in Ghana to help farmers get water for irrigation.

还有一个小组在加纳开发了一种移动脚踏泵，农民可以此获得用于灌溉的水。

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