单词	to tumble off
释义	英華字典資料庫同義詞☞to roll down
随便看	fractional coins fractional column fractional combustion fractional computer fractional condensation fractional condensation on surface fractional condenser fractional condensing tube fractional constant fractional conversion fractional coordinate fractional correction rule fractional counting loss fractional crystalization fractional crystallization fractional cultivation fractional cumulative yield fractional currency fractional decomposition fractional design fractional dialysis fractional differentiation fractional differentiator fractional digit fractional dimension