18 Eylül 2012 Salı

@slideshare: How speaking metronome TickTalk helps you talk not too fast, not too slow, just right http://t.co/e9s10pHB

How speaking metronome TickTalk helps you talk not too fast, not too slow, just right http://t.co/e9s10pHB http://twitter.com/slideshare/status/248209897295069184

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