Through dance classes, cheerful camps, college courses, our marriages,
and everything in life—we’ve been forever friends.上面句子中,在through介词短语后面使用了长划线破折号,这是什么用法呢?—we’ve been forever
friends,这里的破折号是代替逗号吗?
1. We look on music lessons as dispensable. 这里as是副词吗? as dispensable是宾补,对吗?2. We look on music lessons as they are dispensable. 这里as they are dispensable.是句子里的什么成分?可以把例句1改成例句2 这样表达吗?