YOU SAID:
she sells the sea shells on the sea shore 2
INTO JAPANESE
彼女は海岸で貝殻を売っています2
BACK INTO ENGLISH
She sells seashells on the beach 2
INTO JAPANESE
彼女はビーチで貝殻を売っています2
BACK INTO ENGLISH
She sells seashells on the beach 2
That didn't even make that much sense in English.