工程完工后，许多人转到其他建筑工地或城镇的工厂工作，在那里他们成为不断扩大的工人阶级的一部分。
When the work was completed, many moved to other construction jobs or to factory work in cities and towns, where they became part of an expanding working class.
此外，对2000多名工人来说，把所有东西搬到建筑工地是一项巨大的挑战。
Besides, carrying everything to the building site was a great challenge for over 2,000 workers.
工人们用推土机把建筑工地推平。
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