The population of the world has more than doubled in the past ten years.

问题描述:

The population of the world has more than doubled in the past ten years.
这里more than 后面的doubled是形容词呢,还是说是has doubled,然后more than 是相当于副词来修饰doubled这个过去分词?
因为有 as expected,than usual 这些后面都跟的形容词,所以我认为是doubled是形容词,但是如果真是这样,more than 是不是也可以改成as many as doubled?

The population of the world has ( more than doubled in the past ten years.)more than doubled 两倍以上因为有 as expected,than usual 这些后面都跟的形容词,所以我认为是doubled是形容词,但是如果真是这样,mor...