Max eats only good things hoping to pr以erve his health.马克斯只吃好东西，希望保持健康。

press vt.压，压棒

Press all the juice from the oranges.压出橘子里的所有果汁。

prevail vi.流行，盛行；居主导地位

Making resolutions on New Year's Day is a custom that still prevails.在新年当天许下心愿是一种至今仍非常流行的习俗。

previous adj.在前的，早先的

Training is provided, so no previous experience is required for the job.这份工作将提供培训，因此不需要之前有任何经验。

primary adj.第一位的，主要的

A balanced diet is primary to good health.均衡饮食对身体健康最重要。

prime adj.主要的；最初的；最重要的n.鼎盛时期

Prime wisdom is derived from experience.最重要的智慧来源于经验

He is in the prime of his career at forty.他四十岁时职业发展达到了顶峰。

primitive adj.上古的，原始的

Anthropologists agree that our primitive ancestors who inhabited the tropics probably had natural protection against the sun.人类学家同意，居住在热带的人类祖先可能有对抗太阳的天然防护能力。

principal n.负责人；首长；校长

Ms. Chen is the principal of our school.陈女士是我们学校的校长。

The moon, being much nearer to the earth than the sun, is the principal cause of the tides.月亮比太阳距离地球更近，是引发潮汐的主要原因。

principle n.原则，原理

I make it ato save some money each week.我把每周存一些钱作为自己的一条原则。

prior adj.优先的，在前的；在…之前的（to)

They had to refuse the dinner invitation because of a prior engagement.他们不得不拒绝晚餐邀请，因为他们之前已经另有约会。

He had shown no signs of being in pain prior to suffering a heart attack and collapsing.他在突发心脏病和体力不支之前，没有表现出任何痛苦的迹象。