单词	向後退去
释义	同BACK
随便看	ball clover-- trifolium nigrescens ball clover; trifolium nigrescens ball club ball coal ball cock ball-cock ballcock ball cock--ball valve ball cock; ball valve ball cocks ball cock，ball valve ball collar ball complement bore diameter ball complement out-side diameter ball control ball-crank handle ball cratering ball crusher ball curve ball de corre ball de corre (france) ball del (catalonia ball del (catalonia--ciri--spain) ball, derek ball diabase