If Europe wants to pull its weight on the global stage, it will have to act with greater unity of purpose and shoulder a greater share of responsibility.
如果欧洲想要在世界舞台上占有一席之地,他们要更加义无反顾采取行动,扛起更多的责任。
At this stage, you can also optionally remove the persistence-unit-ref elements in the web.xml because they no longer serve any purpose.
在该阶段,您还可以选择删除web . xml中的persistence - unit - ref元素,因为它们不再用作任何用途。
The purpose of this chapter is to set the stage for learning about computer science and programming, a process that you will begin in earnest in Chapter 2.
本章主要逐步的学习了关于计算机科学及编程(关于编程将在第二章中开始认真的学习)。
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