Pressure is pressure

Pressure is pressure. It doesn't matter if it comes from a bicycle pump or air compresser. What's your point?

所有跟帖： 

• 打气筒怎么也得10块钱吧， 还是手动的。 你是真觉得你的时间那么不值钱？ -hello2002- ♀ (74 bytes) () 11/02/2015 postreply 15:08:59

• time -zy3- ♂ (451 bytes) () 11/03/2015 postreply 09:51:26

• 你忘了加上去Walmart买bike pump的60分钟。然后买了个便宜的pump用两次坏了， 再去Walmart的60分钟。： -hello2002- ♀ (0 bytes) () 11/03/2015 postreply 11:45:11