YOU SAID:
She sells sea shells on the sea floor.
INTO JAPANESE
彼女は海底で貝殻を売っています。
BACK INTO ENGLISH
She sells shells at the bottom of the ocean.
INTO JAPANESE
彼女は海の底で貝殻を売っています。
BACK INTO ENGLISH
She sells shells at the bottom of the ocean.
That didn't even make that much sense in English.