Did you hear of Sears Tower before you are here?

在来这里之前你听说过西尔斯大厦 吗 ?

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The two tallest are the Sears Tower and the John Hancock Building.

其中最高的的两栋是希尔斯塔和约翰.汉考克塔.

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The environmental upgrades are the latest changes affecting Sears Tower.

环保升级是影响西尔斯大厦的最新式变化.

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Sears Tower stands over 1700 feet and overlooks the west side of Chicago's city.

希尔斯大厦高达1700多英尺,能俯瞰芝加哥市的西区.

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