HSK 7-9
过硬
guòyìng形
to have perfect mastery of sth; to be up to the mark
产品质量过硬才能赢得信任。
Chǎn pǐn zhì liàng guò yìng cái néng yíng dé xìn rèn.
Only products of excellent quality can earn trust.
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.