London 's financial district is full of such squares and courtyards .

伦敦的金融区到处都是这类广场和庭院。

Smith highlights another benefit of the private squares : they provide a safe haven for wildlife .

史密斯强调了私人广场的另一个好处：它们为野生动物提供了一个安全的避难所。

On the left side there are small squares , representing all kinds of sensors .

在白板的左边是一些小正方形，它们代表着各种类型的传感器。

A few squares were given color at the start to simulate typical sudoku play .

点阵中有一些方格已经在实验开始时赋予了颜色，来模拟实际中的数独游戏。

But shifted three squares on .

只要往上移动三个格。