YOU SAID:

the sky turned red when the bomb exploded

INTO JAPANESE

爆弾が爆発したときに空が赤くなった

BACK INTO ENGLISH

When the bomb exploded the sky turned red

INTO JAPANESE

爆弾が爆発したとき、空は赤くなった

BACK INTO ENGLISH

When the bomb exploded, the sky turned red

INTO JAPANESE

爆弾が爆発したとき、空は赤くなった

BACK INTO ENGLISH

When the bomb exploded, the sky turned red