P字母开头的单词或词组(第17页)：
- playful
- present simple
- present progressive
- passive voice
- present perfect
- pronunciation
- psychologist
- pimple
- photographer
- pro
- provide with
- programming
- put off
- part of speech
- pen pal
- post office
- pay phone
- penguin
- phone number
- pencil sharpener
- play sports
- pants
- PM
- P.E.
- polluted
- paper cut
- pagoda
- PS
- protection
- ping-pong
- punctuation
- photography
- peacefully
- popcorn
- particularly
- performer
- properly
- profile
- ponytail
- PE
- paper clip
- presentation
- polar bear
- per cent