求改f为v加es的单词

self, leaf,knife,shelf

贼的妻子用刀和树叶杀死一只儿狼
the thief's wife killed a wolf with a knife and leaf.

wife,knife,leaf,thief,half,life,chief,half---halves
wolf---wolves
,shelf;self

leaf——leaves叶

thief——thieves小偷

shelf——shelves搁板

knife——knives小刀