Jack is back from a short stay with his uncle.

杰克在叔叔家待了没多久，现在回来了。

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Jack is surprised when Nina arrives back at CTU since he specifically asked her to watch his family.

当尼娜返回到反恐组时，杰克感到奇怪，因为他特别要求她守护他的家人。

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"There are so many university graduates," says Jack ma, the founder of Alibaba, a Chinese Internet empire, "and it is difficult to send them back to work in a factory."

中国互联网帝国阿里巴巴的缔造者马云说：“本科毕业生太多，而且很难把他们送回工厂去工作。”

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But Wales boss John Toshack is boosted by the news Gabbidon's Hammers team-mate Jack Collison is back in full training after recovering from a knee injury.

BBC: Davies injury hits Fulham & Wales

However -- and this is pivotal -- Jack doesn't look back when the explosion hits.

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"He definitely needs to go back and take exams, " said Jack Peng, a golf agent who is serving as an adviser to Guan's family.

WSJ: Guan Tianlang: A Schoolboy Steals Day One of the Masters