HSK 5
随手
suíshǒu副
conveniently; without extra trouble; while doing it; in passing
离开时请随手关灯。
Lí kāi shí qǐng suí shǒu guān dēng.
Please turn off the light as you leave.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 5.