She intented to dress up as a ghost and as she had made her costume the night before

问题描述:

She intented to dress up as a ghost and as she had made her costume the night before
我想问and 后面as 是什么用法

我觉得解释为:因为
可以翻译为:她想把自己打扮成鬼,因为前一天晚上她已经做好了衣服.