Grail
/greɪl/(亦作Holy Grail)
noun
1- (in medieval legend) the cup or platter used by Christ at the Last Supper, and in which Joseph of Arimathea received Christ's blood at the Cross. Quests for it undertaken by medieval knights are described in versions of the Arthurian legends written from the early 13th century onward.圣杯, 圣盘（中世纪传说中耶稣在最后的晚餐中用的杯或盘, 亚利马太人约瑟就是用它在十字架下接了耶稣的血; 中世纪骑士对这个圣杯或圣盘的寻找在13世纪早期之后有关亚瑟王传奇的不同版本中都有描述）。
1.1
- figurative a thing which is being earnestly pursued or sought after〈喻〉渴望得到的东西：
profit has become the holy grail.
利润已经成为人们追逐的目标。
词源
from Old French graal, from medieval Latin gradalis 'dish'.