记牢

Traditional form:

記牢

Pinyin (reading):

jìláo

Definitions:

• to commit to memory

Characters:

• 记 - mark, sign; to note, to record
• 牢 - pen, prison, stable; fast, firm, secure

Traditional characters:

• 記 - mark, sign; to note, to record
• 牢 - pen, prison, stable; fast, firm, secure