牢记

铭记 míngjì HSK 7 #9,815

to engrave in one's memory / to always remember / to bear in mind

牢牢 láoláo HSK 7 #10,210

firmly / securely / tightly

惦记 diànjì HSK 7 #10,973

to think about / to keep thinking about / to be concerned about

记号 jìhao HSK 7 #6,490

mark / sign / symbol

记住 jìzhù HSK 1 #886

to remember / to bear in mind

牢固 láogù HSK 7 #12,955

firm / sturdy / solid

记忆 jìyì HSK 5 #1,341

memory; recollection / to remember; to recall

记 jì HSK 1 #725

to record / to remember

记得 jìde HSK 1 #265

to remember

牢房 láofáng #4,445

prison cell / jail cell