দোলক ঘড়ি দ্রুত চলে কোন কালে?

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    Sep 22, 2012 02:00 PM 1 Answers
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    AnswersBD Administrator Sep 22, 2012 02:06 PM
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    দোলক ঘড়ি দ্রুত চলে শীতকালে।

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