1. freind: know each other, male or female, they may help each other in life
2. girl(boy) friend: the aim is to make a sex opposite friend. having sex(in western countries) or not (may for chinese).
3. sex: can be happened between friends or stranger, just for a biological or commercial reguirement.
4. love: best of best friend+sex, it is mental, physiological satisfaction.
5. marriage: social certificate, can be political, commercial, lovely purpose
6. child: biological or medical human-product, can be for different purpose, such as, love, family, wishes,
7. family: a social group, general including, father, mother, children ..... not beyound three generation
8. morality: a social understanding to all of human behavious
9. law: a line of human behavious that cannot damage another
2. girl(boy) friend: the aim is to make a sex opposite friend. having sex(in western countries) or not (may for chinese).
3. sex: can be happened between friends or stranger, just for a biological or commercial reguirement.
4. love: best of best friend+sex, it is mental, physiological satisfaction.
5. marriage: social certificate, can be political, commercial, lovely purpose
6. child: biological or medical human-product, can be for different purpose, such as, love, family, wishes,
7. family: a social group, general including, father, mother, children ..... not beyound three generation
8. morality: a social understanding to all of human behavious
9. law: a line of human behavious that cannot damage another