■ 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。

• ache
• acquaint
• acquaintance
• across from
• across...from
• across... from..., across from..., from across...
• act
• action
• active
• actually
• act 与 action
• A. D.
• ad
• adapt
• add
• address
• admire
• admission
• admission 与 admittance
• admit
• admittance
• adopted
• adore
• adventure
• adversary