teenage的名詞形式是：teenage，teenager

Teenageis the period at which the body reaches maturity

青少年是身體成熟期。

Teenagers must adapt to today ' s harsh realities

青少年必須適應(yīng)今日冷酷的現(xiàn)實(shí)。

Characteristics and prevention of teenagers ' network crime

青少年犯罪及治理對(duì)策。