YOU SAID:

For a long time now, machine translation (MT) has been the holy grail of language understanding

INTO JAPANESE

長い間、機械翻訳（MT）は言語理解の聖杯でした

BACK INTO ENGLISH

Machine translation (MT) has long been a holy grail of language understanding

INTO JAPANESE

機械翻訳（MT）は長い間言語理解の聖杯でした

BACK INTO ENGLISH

Machine translation (MT) has long been a holy grail of language understanding