Complex sentence: When the Nationalist Party lost control in Mainland China in 1949, the university's activities were halted, but the university opened once again in Taipei in 1954 to meet the growing demands of tertiary education in Taiwan.
Split into simpler sentences: When the Nationalist Party lost control of mainland China in 1949, the university's activities were halted. The university opened once again in Taipei in 1954 to meet the growing demands of tertiary education in Taiwan.