YOU SAID:

she sells seashells on a seashore.

INTO JAPANESE

彼女は海岸で貝殻を売っています。

BACK INTO ENGLISH

She is selling shells at the beach.

INTO JAPANESE

彼女は浜で貝を売っています。

BACK INTO ENGLISH

She is selling shellfish at the beach.

INTO JAPANESE

彼女は浜で貝を売っています。

BACK INTO ENGLISH

She is selling shellfish at the beach.