HSK 5
键
jiàn名
key (on a piano or computer keyboard); button (on a mouse or other device); chemical bond; linchpin
按这个键就能关闭机器。
Àn zhè ge jiàn jiù néng guān bì jī qì.
Press this key to turn off the machine.
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.