Miriam300 Mar 1, 2009:

yea- Jianming, please close the question, it has been up since the 8th February

Mark Berelekhis Mar 1, 2009:

Jianming, please close the question.

Jack Doughty Feb 8, 2009:

Could even be someone in a horse-drawn carriage with pneumatic tyres calling on the horse to stop because one of the tyres has suffered a puncture (No, I don't think that's likely, but it's not impossible!)

David Russi Feb 8, 2009:

Without more context if the setting and action, there is no way to know.