实心圆表示活动图的起点，实际上是一个占位符，带边框的实心圆表示终点。
The filled circle represents the starting point of the activity diagram, effectively a placeholder, and the filled circle with a border represents the ending point.
教宗预计会在8月18日抵达马德里停留四天，作为他为期六天世界青年节活动的终点。
The Pope is set to arrive in Madrid on August 18 for the final four days of the six-day World Youth Day event.
经济学家们说经济活动的起点和终点都是文化。
Economists would put it that both the beginning and the ending of an economic activity is culture.
应用推荐