please explain it soon
130424
flywheel http://en.wikipedia.org/wiki/flywheel regenerative braking-- http://en.wikipedia.org/wiki/regenerative_braking
320297
Give us a clue ! please !
436500
Please explain yourself so we can give an answer.
215239
Only time will answer ur question
453733
sorry, no idea\nneed to be explained
468647
Explain the business.
156720
tell me when you find out
462404
when you get it can you tell me?
539899
okay, give us a clue!
240189
can you elucidate it a little more please?
522885
Could you give me a detailed explanation ?
25094
I'm not sure I understand the question.  Add some detail?
84953
Maybe can you tell me more?
172871
i don't know but when you find out please let me know...
51437
Don't quite understand your question
412265
Can you explain what do you mean?
298432
clarify please, don't quite understand what you are asking.