HSK 4
关键
guānjiàn名形
crucial point; crux; key
认真听是学好语言的关键。
Rèn zhēn tīng shì xué hǎo yǔ yán de guān jiàn.
Listening carefully is key to learning a language well.
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 4.