学习了：）入乡随俗。查了一下Holy Grail：

 

 

The Damsel of the Sanct Grael by Dante Gabriel Rossetti (1874)

The Holy Grail (French: Saint Graal, Breton: Graal Santel, Welsh: Greal Sanctaidd, Cornish: Gral) is a treasure that serves as an important motif in Arthurian literature. Different traditions describe it as a cup, dish or stone with miraculous powers that provides eternal youth or sustenance in infinite abundance, often in the custody of the Fisher King. The term "holy grail" is often used to denote an elusive object or goal that is sought after for its great significance.^[1]