HSK 7-9
切记
qièjì动
remember at all costs
出门前切记关闭所有电源。
Chūmén qián qièjì guānbì suǒyǒu diànyuán.
Before leaving, be sure to turn off all power sources.
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.