YOU SAID:

the half size of earth is huge

INTO JAPANESE

地球の半分のサイズが巨大です

BACK INTO ENGLISH

The size of the half of the Earth is huge

INTO JAPANESE

地球の半分の大きさは巨大です

BACK INTO ENGLISH

Half of the Earth is huge

INTO JAPANESE

地球の半分は巨大です

BACK INTO ENGLISH

Half of the Earth is huge