YOU SAID:

we have to build on existing work to a large degree

INTO JAPANESE

既存の作業を大幅に強化する必要があります

BACK INTO ENGLISH

Existing work must be significantly enhanced

INTO JAPANESE

既存の作業を大幅に強化する必要がある

BACK INTO ENGLISH

Existing work needs to be significantly enhanced

INTO JAPANESE

既存の作業を大幅に強化する必要がある

BACK INTO ENGLISH

Existing work needs to be significantly enhanced