In The Island and the Other Shore, for instance, they had to study the Cultural Revolution and kung-fu novels, and in Circle Story they had to delve into the history of the small eateries at the Nanking W. Rd.
譬如「回頭是彼岸」要研究文革和武俠，「圓環物語」要回溯圓環小吃街的歷史。