YOU SAID:
The bear slopes down the gravelly abyss
INTO JAPANESE
熊は砂利の奈落の底を下ります
BACK INTO ENGLISH
Bears go down the abyss of gravel
INTO JAPANESE
クマは砂利の深downを下る
BACK INTO ENGLISH
Bear descends gravel depth down
INTO JAPANESE
クマが砂利の深さを下る
BACK INTO ENGLISH
Bear goes down gravel depth
INTO JAPANESE
クマが砂利の深さを下る
it is unlikely that this phrase will ever reach equilibrium