除夕当天，我们四点半准时到达，排队等了三趟电梯才能上楼。有一家人未经预订，想现场等位，却被告知不做现席，只好离开。我们落座后不久，两层楼的大厅和包间座无虚席，食客都是10人乃至20人的大家庭。
given a stack of punched cards encoding transactions, they produced a ledger
。旺商聊官方下载对此有专业解读
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