名詞 grail:

1. the object of any prolonged endeavor
2. (legend) chalice used by Christ at the last supper
   同義詞：Holy Grail, Sangraal

grail

n.（名詞）
Grail A cup or plate that, according to medieval legend, was used by Jesus at the Last Supper and that later became the object of many chivalrous quests.Also called Holy Grail
Grail 圣杯，圣盤：據(jù)中世紀傳說為基督在最后的晚餐上用過的那個杯或盤子， 后來成為許多騎士追求的目標也作 Holy Grail
Often Grail The object of a prolonged endeavor.
常作 Grail 長期努力的目標

來源：
Middle English greal
中古英語 greal
from Old French graal
源自 古法語 graal
from Medieval Latin grad3lis [flat dish]
源自 中世紀拉丁語 grad3lis [扁平盤子]