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We hope to build four by Christmas, including a "wave wall" with earth-bagged sleeping pouches nestled along the troughs.

我们希望能在圣诞节前建成四座建筑，包括一座由像睡袋那样的泥土口袋在低处垒起的防波墙。

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Soon, the first snow came, and the four mice went back into the wall.

很快，第一场雪就到了，四只老鼠回到了洞中。

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More than four thousand homes were destroyed when a nearby flood wall broke.

VOA: special.2010.01.22

I started talking about what happened in October 1987 and I looked around the room and I realized that I think the students were three or four years old in 1987 and weren't yet reading The Wall Street Journal.

当我提到1987年10月所发生的事,我环顾整个教室,意识到,1987年在座各位可能只有三四岁,还没有读过那时的《华尔街日报》

耶鲁公开课 - 金融市场课程节选

With all four Wall Street banks having submitted their financial statements to the SEC, details on their compensation regimes have surfaced, showing that banks paid less than in past years, but still handed out healthy bonuses.

FORBES: Wall Street 2010 Compensation: Goldman and JP Morgan Lead The Pack

At an operations control center in the English city of Derby, a handful of railway engineers spend their days focusing intently on four large wall-mounted computer screens displaying data about the conditions of the engines, the heating and cooling systems and whether a door might be jammed on any of 33 Scottish trains.

FORBES: The Great Train Catch-Up

The big four are Great Wall, Dragon Seal, Changyu and Huadong.

FORBES: Magazine Article