1.portray v.描写，描绘(to describe in words)

联想记忆：por(看作pour．倒)+tray(碟)--将颜料倒在碟子上——描写，描绘

例：Not only does the GDP mask this erosion in the social structure, it can actually portray it as an economic gain.

派生词：portrayal(n.描绘；肖像)

2.posit v．断定，认为（to assume or affirm the existence of）

联想记忆：可以断定(posit)，确实(positive)是这样

例：They posit that biological distinctions between the sexes result in a necessary sexual division of labor.

3.positive a．肯定的(sure)；积极的active）；【数】正的

例：There are clear and positive signs that people are becoming more respectful of one another's differences. positive integer正整数

派生词：positively( ad.断然地；肯定地)

4.possess v.具有，拥有Ito own）

例：The patrons who paid bills in cash did not possess credit cards.

派生词：possession(n.拥有；财产)；possessed（a．着迷的）；possessiveness（n.占有）

5.possibility n．可能性(the condition or fact of being possible)

词根记忆：来自possible(a．可能的：合适的)

例：Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life.

同根词：impossible(a．不可能的)

6.postage n．邮资，邮费(the fee for postal service)

词根记忆：post(邮政)+age(费用)--邮费，邮资

例：The rarer something becomes, whether it is a baseball card or a musical recording or a postage stamp, the more avidly it is sought by collectors.

同根词：postal(a．邮政的)

7.postal a．邮政的：邮局的（of or relating to the mails or the post office）

词根记忆：post(邮政)+al——邮政的

例：Postal workers are representative of service workers in general.

同根词：postbox(n．邮箱)；postcode(n.邮政编码)

8.posterity n．子孙，后代（offspring）

词根记忆：post(后)+erity--后面的人--后代

9.potent a．效力强的，烈性的（chemically or medicinally effective）

词根记忆：pot(能力)+ent——能力大的——效力强的，烈性的

例：The potent drug knocked John unconscious.