HSK 7-9
顾名思义
gùmíng-sīyìas the name implies
顾名思义这是一种节水设备。
Gù míng sī yì zhè shì yì zhǒng jié shuǐ shè bèi.
As the name implies, this is a water-saving device.
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.