鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?
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鐘打4下,要3秒,咁鐘打7下,要幾多秒呢?^^tvboxnow.com# v0 s+ R: T1 V T" G
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答左回覆先好看答案呀^_^,唔係冇引咖啦- -v
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