YOU SAID:

the curtains in my room have red and black stripes on them

INTO JAPANESE

私の部屋のカーテンには赤と黒の縞模様があります

BACK INTO ENGLISH

The curtains in my room have red and black stripes

INTO JAPANESE

私の部屋のカーテンには赤と黒の縞模様があります

BACK INTO ENGLISH

The curtains in my room have red and black stripes