Meaning of chéng nián:
chéng nián
成年
Verb
to grow to adulthood; fully grown; adult
Tā jiāng zài xià gè yuè chéng nián.
他将在下个月成年。
He will come of age next month.
Tā zhōngyú dàole kěyǐ bèi rènwéi shì chéngnián rén de niánlíng.
他终于到了可以被认为是成年人的年龄。
He has finally reached the age that can be considered as an adult.
Noun
the whole year
Tā quán nián dōu zài gōngzuò, yǐbiàn wèi jiàqī cún qián.
他全年都在工作,以便为假期存钱。
He works all year round to save money for vacations.