Yisd Hac: Parents Outraged Over Hidden Student Performance Data. Data Sish Institute

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Whatsapp 用不了的情况，一般 4 小时后，便能正常使用 whatsapp，若 4 小时还是不能正常使用，那么封号的可能性就比较大了。

Parents outraged by ‘mandatory’ school assembly that included student