YOU SAID:

those watermelon smiles just can't ripen under water.

INTO JAPANESE

それらのスイカの笑顔だけ水の下で熟成させることはできません。

BACK INTO ENGLISH

Not that those watermelon smiles just ripen under the water.

INTO JAPANESE

それらのスイカの笑顔は、ちょうど水の下で熟すこと。

BACK INTO ENGLISH

That those watermelon smiles just ripen under the water.

INTO JAPANESE

それらのスイカの笑顔はちょうど水の下で熟します。

BACK INTO ENGLISH

Those watermelon smiles just ripen under the water.

INTO JAPANESE

それらのスイカの笑顔は、水の下でちょうど熟します。

BACK INTO ENGLISH

Those watermelon smiles just ripen under the water.