needed, necessary

age, era, period (of time) / the times, spirit of the age / antiquity / a time in one's life, one's days (in college etc.)

頭: head

new age; new era; new epoch; new period

work by a ghostwriter

appropriate and accurate

suitable, appropriate, fit / Alternative spelling of 嫡: direct; legitimate / Alternative spelling of 敵: enemy

敵: enemy; opponent / 趯: the fourth of the Eight Principles of Yong

的: adjectival suffix

need, necessity