[Li-Zhuo-Ran]

Summary

• Reviewed the Chinese lecture against the English source, including data types, file I/O, iteration, comparisons, style, and all exercises/solutions.
• Confirmed 85 code cells and all exercise, solution, hint, note, and reference directives are present.
• Clarified that str.title() capitalizes each word, and described docstrings as documentation rather than generic comments.

Validation

• git diff --check

Refs #88