1 (wiktionary) 2 (zh.wikipedia) 3 (en.wikipedia) 4 (glosbe)

Compounds Expand your vocabulary by studying more complex words built by the 'core words'.

HSK 3.0 (2022)	Big5	Gb	Pin	Eng
2	改	改	gǎi	alteration, rectification, transformation, change, correct, put ... right, transform, rectify, revision, switch over to, ameliorate, revise, put right, amend, correction, gybe, alter
7	矯正	矫正	jiǎozhèng	to correct, to rectify (e.g. a physical defect such as hearing or vision), to cure, rectification, correction, to straighten