But the overall total area of these buildings is just 0.26 square kilometers.

但这些建筑的总面积只有0.26平方公里。

Now they must be done by Americans who count toward the overall total of official Americans permitted to serve in the USSR.

现在，这些事情必须由美国人来做，因为美国人很在意能在苏联工作的美国人总数。

This means the overall total is now around 60,000, and this is before the peak migration period over the summer.

这意味着现在的总数约为 60, 000 只， 而这是在夏季迁徙高峰期之前。