1. preface to ……的前言，如：
An essay written as a preface to a more detailed work.
序言作為更為詳細的作品的序言而寫的文章
2. preparation for 準備，如：
They have made good preparation for the upcoming elections.
他們對即將到來的'選舉作了充分的準備。
3. preference to sth 優先，如：
In considering people for jobs, we give preference to those with some experience.
對於求職者，我們優先考慮有一定經驗的人。
4. proposal for sth 建議，如：
I reflected on this proposal for some time.
這項建議我仔細想了一些時候。
5. prejudice against/ 對……的偏見,偏重，如：
He has a prejudice against all foreigners.
他對所有的外國人都有偏見。
6. protection for sb 保護，如：
environmental protection for exploration engineering
7. protest against sth 抗議， 如：
The Russian team entered a protest against the tactics of American side.
俄羅斯隊提出正式抗議，反對美國隊的戰術。
8. ratio of sth to sth 比率，如：
The ratios of 1 to 5 and 20 to 0 are the same.
1與5之比和20與0之比相同.
9. reaction to 對……的反應，如：
A negative reaction to the new advertising campaign.
對新廣告的宣傳手法持反對立場
10. reason for 原因,理由，如：
Their reason for doing it is still a puzzle to me.
他們為什麼要做此事我仍莫名其妙.
