Translation

• to grow to adulthood
• fully grown
• the whole year

Synonyms

• 一年到头, 常年, 整年, 终岁, 终年, 通年, 长年

Examples

• 成年人很难理解那些音乐。
  The music is difficult for grownups to understand.
• 有些人认为从小学升到中学是踏入成年的第一步。
  The graduation from elementary school to middle school is regarded by some as the first step towards adulthood.