■ 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。

• ph. d., phd
• photo op
• physical
• pigeon
• pile
• plane
• plants and animals
• play
• pleasure
• pm
• point
• policy
• political
• political, politics
• politician
• politician, politico 与 statesman
• politico
• politics
• population
• positive
• possession
• possible
• possible
• possible 与 impossible
• possibly