n.长期追求的目标
Grail:（传说中耶稣在最后的晚餐中用过的）圣杯.
There are many stories about the quest of the Holy Grail. 有许多关于寻找圣杯的故事。
The Holy Grail of programming is the construction of reusable, modular components. 程序设计所追求的目标是构造可重用的、模块化组件。
"Creating beneficial result , bringing benefit to society " is our ceaseless grail. “创造效益，造福社会”是我们不断追求的目标。
