YOU SAID:

Because the shells of many sea snails are attractive and durable, they have been used by humans to make necklaces

INTO JAPANESE

多くの海カタツムリの貝殻は魅力的で耐久性があるので、人間はネックレスを作るために使用されています

BACK INTO ENGLISH

Many sea snail shells are attractive and durable, so humans are used to make necklaces

INTO JAPANESE

多くの海カタツムリの貝は魅力的で耐久性があるので、人間はネックレスを作るために使われます

BACK INTO ENGLISH

Many sea snail shells are attractive and durable, so humans are used to make necklaces