holy grail
US /ˌhoʊ.li ˈɡreɪl/
UK /ˌhəʊ.li ˈɡreɪl/
名词
圣杯, 终极目标
something that is extremely difficult to find or achieve
示例:
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Finding a cure for cancer is often referred to as the holy grail of medicine.
寻找癌症的治疗方法常被称为医学界的圣杯。
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For many scientists, discovering extraterrestrial life is the ultimate holy grail.
对于许多科学家来说，发现外星生命是最终的圣杯。