補習班續班提案（數據說服信件式）

prompt

Write a semester renewal proposal from a tutoring centre to the parents of {student_name}, structured as a one-page progress-and-plan letter. Section 1: a results snapshot presenting {score_improvement} in {subject} as a short before/after table, plus two specific study-habit improvements observed in class. Section 2: the remaining gap to {next_term_goal} and a twelve-week plan split into three milestone blocks. Section 3: renewal options as a two-column comparison — continue the current plan versus upgrade with a weekly one-on-one clinic — ending with an early-bird tuition discount valid until {early_bird_deadline}. Use a warm, evidence-first tone that lets the data do the selling; no pressure language. Output clean Markdown under 380 words, ready to print or send through a parent messaging app.