I didn't know that both reports were due today.

　　我不知道今天这两份报告都要上交。

　　The IBM'ssgroupshas to work 24 hours a day (around the clock) / because the service gateway item will be due in 5 days.

　　IBM的这个工作小组要加班加点地工作，因为网关的项目只剩5天时间了。

　　Work 24 hours a day/work around the clock/day in and day out.

　　一天工作24小时/围绕时钟工作/，可见工作之繁忙，常用于形容工作任务很多，或者某人非常卖力。