Complex sentence: In 1939, the Pacific War became much more heavily, thus Teng resigned from his job and evacuated to Cyonglin of Hsinchu with his family, then served as a teacher in the Cyonglin Public School (芎林公學校).
Split into simpler sentences: In 1939, the Pacific War became much more heavily, thus Teng resigned from his job and evacuated to Cyonglin of Hsinchu with his family. He served as a teacher in the Cyonglin Public School (芎林公學校).