YOU SAID:
When the river crashes with the sun
INTO JAPANESE
川が太陽と衝突したとき
BACK INTO ENGLISH
When the river collides with the sun
INTO JAPANESE
川が太陽とぶつかるとき
BACK INTO ENGLISH
When the river hits the sun
INTO JAPANESE
川が太陽に当たったとき
BACK INTO ENGLISH
When the river hits the sun
That didn't even make that much sense in English.