the Holy Grail
noun /ðə ˌhəʊli ˈɡreɪl/
/ðə ˌhəʊli ˈɡreɪl/
(also grail)
- [singular] the cup or bowl believed to have been used by Jesus Christ before he died, that became a holy thing that people wanted to find
圣杯（据信为耶稣离世前所用） - [countable, usually singular] a thing that you try very hard to find or achieve, but never will
渴望但永远得不到的东西；努力追求但永远不可能实现的目标（或理想）