关于play an important roleboth A and B plays an important role in today's society.总感觉有点怪,both后有A 和 B 后面是play an!important role.不知道这种情况怎么处理,难道有play important roles?感觉略怪

问题描述:

关于play an important role
both A and B plays an important role in today's society.总感觉有点怪,both后有A 和 B 后面是play an!important role.不知道这种情况怎么处理,难道有play important roles?感觉略怪