差動齒輪

差 chaˋ cha ˉ chai ˉ ci ˉ

Different, Mismatched, Differ from, Fall short of, Not up to standard, Be Short Of, Fall short, Under performing, Disappointing, Error, Lack, Make a mistake, Wrong, (cha1), Difference, Discrepancy, Differential, Mistake, (chai1), Messenger, Errand person, Dispatch, Job, Duty, Office, (ci1), Uneven, Irregular

動 dongˋ

Action, Movement, Exercise, Do exercise, Creature, Act, Acts, Acting, Acted, Move, Moves, Moving, Moved, Change, Changes, Changing, Alter, Alters, Altering, Altered, Happen, Happens, Happening, Happened

齒輪 chiˇ lunˊ

(Cog, Gear, Sprocket) Gear wheel, Cog, Sprocket