Police said they have covered less than one-sixth of the search area since the effort began a week ago.

警察们说，在历时一个星期的搜救里，他们搜索完的区域还不到六分之一。

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The experiment showed that those who entered the dark brown walked more quickly, covered more area, and spent less time in the room than people in the white one.

实验那些进入黑暗的褐色人更快走路，被复盖的较多区域，而且比白色的人在房间中花比较少的时间一。

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The bigger the area covered, the less effect commuting has on the figures.

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By 2001, it covered less than one-fifth of that area -- making it smaller than Delaware or Mauritius.

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