Complex sentence: As Shangguan Wan'er grew older, learned to read and write from her mother, and she read extensively and showed talent for writing prose and poetry at an early age, as well as in matters of civil service regulations.
Split into simpler sentences: As Shangguan Wan'er grew older, she learned to read and write from her mother. She read extensively and showed a talent for writing prose and poetry at an early age, as well as in matters of civil service regulations.