HSK 7-9
牢记
láojì动
to keep in mind; to remember
请牢记安全操作规定。
Qǐng láojì ānquán cāozuò guīdìng.
Please keep the safety procedures firmly in mind.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
Appears across levels (7-9) in the HSK 3.0 word list.