grail
US
UK grail, Grail n: (Holy Grail: sacred cup) (本义，传说中耶稣最后晚餐所用的杯具或盘具)
SC 圣杯 shèng bēi
The king authorized a mission to search for the grail.
grail n: figurative ([sth] sought and prized) (比喻)
SC 努力追求（但无法实现）的目标 nǔ lì zhuī qiú dàn wú fǎ shí xiàn de mù biāo
Scientists have discovered a species that is considered the grail of evolutionary biology.
the Holy Grail n: (religion, mythology: sacred cup)
SC 圣杯 shèng bēi
The knights of the round table went on quests for the Holy Grail.
the Holy Grail, the holy grail n: figurative ([sth] much sought and prized)
SC 梦寐以求的事物
SC 圣杯 shèng bēi(比喻梦寐以求的事物)
Making anything viral is the holy grail of marketing.