只好: without any better option, to have to, to be forced to...
光盘: compact disc, CD or DVD, CD ROM...
防止: to prevent, to guard against, to take precautions...
快餐: fast food, snack, quick meal...
结构: structure, composition, makeup, architecture...
群体: community, colony...
根据: according to, based on, basis, foundation...
不一定: not necessarily, maybe...
养成: to cultivate, to raise, to form (a habit), to acquire...
挺好: very good...
