1 sentence for 记事 (jì​shì — forming memories)

1. 我从四五岁起就开始记事了。

   wǒ cóng sì wǔ suì qǐ jiù kāi​shǐ jì​shì le.

   I've been able to remember things since I was four or five years old.

   Source: Dong Chinese Dictionary