she was sitting with a child on each side of her,each能换成eith

she was sitting with a child on each side of her,each能换成eith she was sitting with a child on each side of her. with 是什么意思 Each side with a love worthy of on each side of the On each side of the street ( ) a lot of trees. on either side of,on each side of 区别 on each side of on every side of 区别 on each side of the street on each side of the road There are trees on either side of the road.此句中either可以换成each She tried hard to provide her child _____ side of street on Look!On the each side of the street are a lot of trees.为什么在句