You are, he thinks, a beggared, dowerless girl.

他认为，你是一个乞丐、没有嫁妆的女孩。

Because she's a dowerless orphan. There are a lot of couples and a lot of complications and a lot of interfering relatives.

因为她是一个没有嫁妆的孤儿 有很多夫妻、很多混乱、很多干涉的亲戚。