也就是说软件应该由可重用的部件构造而成。

The idea is that software should be developed such that it can be constructed from re-usable parts.

youdao

不可能改变窗口小部件构造函数的调用次序，因为这将改变窗口小部件包装的次序。

Changing the order in which the widget constructors are called is not possible, since this would change the order in which the widgets are packed.

youdao

然后，在创建Tree部件时，使用GWT . create实例化这个新接口的实例并把它传递给Tree部件构造器(清单16的第30行)。

Then use GWT.create to instantiate an instance of the new interface and pass it to the Tree widget constructor when the Tree widget is created (Listing 16, line 30).

youdao