If we want to worry about when,if ever, is an abortion justified,it might be worth getting clear on, when do creatures like us start?

如果我们想要弄清楚，堕胎在什么时候是可以接受的，就要弄清楚，我们这样的生命是何时开始的？

耶鲁公开课 - 死亡课程节选

It's a little puzzle piece that says when the green flag is clicked and this is kind ; of like the beginning of a program; when you double click an icon on your desktop this is how something like that is implemented; it's listening for that double click, it's listening for that green flag.

是一小个按钮，它的意思是,何时点击绿色旗帜,这就好比开始运行程序;,当你双击桌面上的图标,就开始执行操作,桌面的图标需要双击，绿色小旗也等待点击来执行命令。

哈佛公开课 - 计算机科学课程节选

How did they determine when two armies would charge each other?

他们如何确定双方何时开始进攻

耶鲁公开课 - 古希腊历史简介课程节选