为什么as```as before有两个as,而as usual只有一个?

问题描述:

为什么as```as before有两个as,而as usual只有一个?

as ...as before 这里的 before 只是常用词组 as ...as 后面跟的一个副词,并非固定搭配.After recovering from his injury,he goes to the gym as often as before.as usual 是俚语,表达“一如往常”之意,并不存在前...