■ 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。

• declare
• decline
• dedicate
• deep down
• defense
• defy
• deny
• dependable
• dependence
• dependence 与 dependent
• dependent
• deprive
• deputy
• derive
• desert
• desert 与 dessert
• deserve
• desk
• desk 与 table
• dessert
• determine
• develop
• dictate
• did
• die