Now I'll add Airports to the Flight class, as shown in Listing 6.

现在我将Airport添加到flight类，如清单6所示。

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Figure 6 shows that the Flight is associated with a specific Plane, and the Flight class knows about this association.

图6显示Flight与一个特定的Plane相关联，而且Flight类知道这个关联。

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Continuing with our Flight class example, we can describe the class's attributes with the attribute type information, as shown in Table 1.

继续我们的Flight类的例子，我们可以使用属性类型信息来描述类的属性，如表1所示。

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But the kids in my district who are losing their school bus can't book a flight to class.

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The lucky winners get a long flight in "cuddle class" with a complete stranger, a weekend together in L.A., all captured on camera with plans to produce a five-episode series.

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To combat the (presumed) flight of its middle-class population, Baltimore created the More in the Middle program in 2008, dedicated to convincing middle-class black families to remain in the city by helping them form financial ties in the area, such as facilitating home ownership, business ownership and higher education.

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