■ successful 与 successive

前者是“成功的”，后者是“连续相继的”。

• a successful attempt to land on the moon成功的登月之举
• three successive years of low rainfall连续三年的少雨。

• population
• positive
• possession
• possible
• possible
• possible 与 impossible
• possibly
• post time
• posture
• potato
• poultry
• pour
• power
• power
• predate
• prefer
• pregnant
• prejudice
• premium
• prepare
• presence
• present
• presently
• president
• pressure