bilbo的复数形式为：bilobes...

octagon的复数形式为：octagons...

ecclesiastic的复数形式为：ecclesiastics...

jackknife的第三人称单数（三单）为：jackknifes...

altarpiece的复数形式为：altarpieces...

co-ordinate的一般过去时为：co-ordinated...

autogyro的复数形式为：autogyros...

gastrectomy的复数形式为：gastrectomies...

centime的复数形式为：centimes...

confectioner的复数形式为：confectioners...

backrest的复数形式为：backrests...

bedsit的复数形式为：bedsits...

fizz的一般过去时为：fizzed...

whizz-kid的复数形式为：whizz-kids...

painkiller的复数形式为：painkillers...

circumflex的复数形式为：circumflexes...

lifebelt的复数形式为：lifebelts...

busk的现在进行时为：busking...

excursionist的复数形式为：excursionists...

obligate的现在进行时为：obligating...

knacker的第三人称单数（三单）为：knackers...

araucaria的复数形式为：araucarias...

enterostomy的复数形式为：enterostomies...

wagon的一般过去时为：wagoned...

每个学生都有导师指导他们写论文。Each student has a supervisor to advise on the writing of the dissertation.他正在写论文, 突然一阵头晕.He was writing his essay when, all of a sudden, he was seized with giddiness.我注意到大部分学者暑期都在写论文。I noticed that most ...

footpath的复数形式为：footpaths...

hairdryer的复数形式为：hairdryers...

policy的复数形式为：policies...

cascade的复数形式为：cascades...

defecate的第三人称单数（三单）为：defecates...