■ 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。

• of a
• of all
• off
• offend
• offer
• office
• off of
• of itself
• of one's
• often
• oil
• old
• on
• on
• on a first-name basis
• once
• one
• one
• one in
• one in 与 one out of
• one of
• one out of
• one-sided
• one 与 a
• on high