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

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
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

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.