You can also make charts with more than two axes by adding a second plot and attaching axes to it.
也可以通过添加第二个绘图区并将轴附加到它来创建带有超过两个轴的图表。
We accomplish this by extending the capabilities of the mock object, adding a second interface (Figure 6).
我们通过扩展模拟对象的功能完成了这一点，即添加了第二个接口(图6)。
Suppose we are adding a second item, and the item we added above with the title Hello World is already saved.
假设我们正添加第二个项目，之前添加的项目已保存，其标题为Hello World。
He has prospered. This year he is adding a second floor to the house, to accommodate the many relatives who come to stay with him during the harsh valley winters.
今年他打算在自家房子上加盖二楼，这样一来，在山谷的严寒季节里，可以有更多的亲戚能到他家来过冬。
He has prospered. This year he is adding a second floor to the house, to accommodate the many relatives who come to stay with him during the harsh valley winters.
今年他打算在自家房子上加盖二楼，这样一来，在山谷的严寒季节里，可以有更多的亲戚能到他家来过冬。
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