I only have thirty minutes to clear customs in getting to the city center and it means I have to check in by five-thirty, which means leaving home at about four fifteen.

我只有30分钟的时间来办理去市中心的海关手续，这意味着我必须在5点30分办理登机手续，也就是说我必须在4点15分左右离开家。

youdao

The study includes a chapter by Daniel Sumner on the Cotton Initiative, which has been placed at the center of the Doha negotiations by four African countries.

研究报告其中的一章由丹尼尔。撒默尔执笔，阐述由四个非洲国家提出的棉花动议。该动议是多哈回合谈判的中心议题。

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He holds four 500 GB USB drives at his home, while the other two are at the data center.

他在家里放有四块500 GB的硬盘，还有两个在数据中心。

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This year's show in Santa Fe took place over four days in March at the city's convention center and nearby hotels.

VOA: special.2009.05.18

The four men at the center of the appeal were reportedly captured outside Afghan borders.

CNN: Terror suspects in Afghanistan can sue in U.S. courts, judge rules

None of the 10 people who died at the Superdome or the four who died at the convention center were murdered, he said.

CNN: 'Rita scares us to death'

Stimson cited the case of Fadi al-Maqaleh, one of the four Bagram detainees at the center of the ruling.

CNN: Terror suspects in Afghanistan can sue in U.S. courts, judge rules