好转 (hǎo zhuǎn) means a situation or condition 'takes a turn for the better' — it is intransitive, so the subject improves by itself (e.g., health, weather, economy). This differs from 改进, 改善, and 改良, which are transitive verbs meaning to actively improve or reform something. 进步 (jìn bù) focuses on personal progress or advancement, not a general situation.