Today more and more old cities are being rebuilt and redesigned in order to be modernized.
What are the advantages and disadvantages


A: more old cities are being rebuilt and redesigned in order to be modernized 的好處
B1: 用if A>B>C


A: more old cities are being rebuilt and redesigned in order to be modernized 的壞處
B2: 用by contrast ???

Lynn 老師有說過, by contrast 不能用在講壞處的地方. 但Emily 老師說, 通常B1 不會用by contrast.
但B2 是講壞處, 又不能用. 請問by contrast 應該在什麼時候用??

還是我把 B1 改為講壞處, 用IF, A>B>C
B2 改為 講好處, 用by contrast

謝謝老師