So I start this program by declaring as I did before a global variable X. It is global simply because it is not inside any of my functions.

在程序的开始，我声明,一个全局变量X，它是一个全局的,因为它不在任何一个函数里面。

哈佛公开课 - 计算机科学课程节选

which is running a program which gets children from a young age involved in global issues,

它是一个让孩子们从年幼时就接触全球性问题的启动项目，

创造美丽的世界 - SpeakingMax英语口语达人