【正文】 hotographer pictograph autograph photo electric electronic neutron photon electricity electron proton electrician electronics gram watt byte milligram kilogram kilowatt kilobyte gigabyte megabyte million millennium annual meter kilometer decimeter centimeter millimeter cent century centigrade percent percentage December octopus October platypus decade lemonade centipede geometry metric metre meter periodical period diameter perimeter symmetry speedometer thermometer thermos cosmonaut taikonaut astronaut altometer geotherm cosmos astrology astrologist disaster economist astronomy economy ecologist astronomer ecology asterism disastrous dialect accent lecturee lectorate lecturer lector lecture doctor doctorate doctrine professor profess confess professorate professional profession confession confessional diagnosis 射 diagnose gnosis diaper paper dia 矮 prognosis de① 表 “否定” value devaluate desalt salt defame famous ice deice dewater water dedust dust frost defrost deform form derail rail code decode forest deforest deficit deficient deficiency defect defection defective degrade grade centigrade gradual gradually graduate graduation upgrade downgrade gradient deprive deprivation private privity privacy privilege illegal legal delegate delegation legally detach semidetached house town house single house attach detachment attachment touch decrease increase increment create decrement destruct destruction destructive construct constructive construction constructor reconstruct instruct instructive instruction instructor structure roach coach degenerate degeneration generate generation generator generous generosity gen e protect protection protective protector detect detection detective detector discover architect architecture architectural archer arctic ant(i)arctic arch longitude latitude equator antiwar antitank arc desert desertion insert insertion assert assertion descend descent ascend ascent descendant transcend denounce pronounce pronunciation denunciation announce announcement de② 表 “加強” decide decision decisive incise incisor incisive scissors homicide herbicide herbal biocide suicide carnivore carnival insecticide insectivore herbivore carnation carnage herbicide festival ivore rou depress depression depose deposit deposition deport deportation debate rebate probate probation bat battle bat baton define definition finite definitive definite definitely confine refine finish final finally finalist infinite determine determination preterminal termin terminal terminate termination terminator term depict depiction picture picturesque arabesque statuesque pictorial Arab Arabian Canadian liberate liberation liberator liberal liberty deliberate deliberation the statue of liberty the statue of freewoman literal literature design signer signification designer designation designator designate sign signal signature signify assign assignment resign resignation consign consignment describe description subscribe subscription prescribe prescription factory scripture manuscript manual manacle manufacture manumotor manufacturer depart departure arrival department department store partment part apartment apart arrive part party particle article partition impart notification desktop denotation denote note notice notify notebook laptop overlap depend dependent dependence independ independent independence interdepend interdependent interdependence pendulum pendant ring necklace bracelet embrace lace ring ring finger How many fingers do you have? 5 8 10 20 finger thumb toe little finger middle finger index finger tomb b bomb womb climb limb lamb detain retain contain container maintain deputy depute pute puter putable putation declare declaration clarification clarify clear clearance unclear decent accent incent incentive ab,ac, ad, af, ag, ar, as, at, an, ap, al, 等加在同輔音字母的詞根前 ,表示“加強” a b c d e f g r s t n p l accentuate accentuation attach attachment attain attainment affect affection append appendent accent assist appendix abbreviate accelerate acceleration decelerate celerity breviate deceleration decelerator accelerator abbreviation accept acceptance acceptable except exception concept conception recept reception receptionist deception deceive receive