parent-child

a.父母与子女之间的

parasite, parasitic, parasitically, parasol, paratrooper, paratroops, paratyphoid, parboil, parcel, parcel bomb, parcel post, parch, parchment, pardon, pardonable, pardonably, pardoner, pare, parent, parent company, parentage, parental, parentally, parentheses, parenthesis, parenthetic, parenthetically, parenthood, parenting, pariah, parietal, parings, Paris, parish, parish clerk, parish council, parish register, parishioner, Parisian, parity,