但是那些长时间骑自行车的男性应该要确保车子舒适，而且要穿充气的自行车裤，并在骑乘过程中要经常的站起来。
But men who spend a lot of time biking should make sure their bike fits them properly, wear padded cycling pants, and stand up frequently while pedaling.
如果你使用了我们的可充气自行车，你可以非常简单地放出空气，把你的自行车放进书包里。
If you use our inflatable bike, you can simply let the air out and put your bike in a bag.
本实用新型属自行车制造专业，它提供了一种解决自行车行驶途中随时随地都可以向车胎充气的装置。
The utility model belongs to the bicycle manufacturing profession, which provides a device which solves the problem that a bicycle on a running way can freely inflate a tyre.
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