■ readership

是个集合名词（“读者群”），只能单数，语法功用类似 population。

• a readership estimated at 16,000,000估计达一千六百万人的读者群。

• foe
• follow
• following
• fool
• foot
• football
• football 与 soccer
• for
• for
• for
• for
• for
• for all that
• forbid
• forbid 与 prohibit
• forecast
• forever
• forget
• forgive
• for granted
• for that matter
• for...to
• forward
• for 与 in
• for 与 until