classifier for years in Chinese

Example sentences

• nǐ 你 jǐ 几 suì 岁 jiāo 交 le 了 dìyī 第一 gè 个 nǚpéngyou 女朋友 ？

  At what age did you have your first girlfriend?
• tā 他 bā 八 suì 岁 shí 时 líkāi 离开 le 了 tā 他 de 的 fùmǔ 父母 。

  He left his parents when he was eight years old.