see clothes as disposable：as 是介词，disposable 是形容词。介词之后为何接形容词？实际上，这是在 as 之后省略了 being，整个as 短语作宾补。
为了简练，as 后通常都是省略 being 的。
being 也可以不省略。为了说明这个问题，以下为 as being + 形容词的例句：
They have a normal body weight but see themselves as being fat.
他们体重正常，但自认为偏胖。
《柯林斯高阶英汉双解学习词典》
In China bats are thought of as being very lucky.
在中国，蝙蝠被视为吉祥物。
《柯林斯高阶英汉双解学习词典》
I regard them as being perfectly ridiculous.
我认为他们非常荒谬。
I don't even look at him as being Asian.
在我看来他不只是亚洲人。
However, 20% of the employees described themselves as being unhappy.
然而，20%的员工认为自己不快乐。
