in a way that looks old and in bad condition because of being used for a long time or not being cared for

shabbily dressed

It was a mean, shabbily furnished room, with a bed in it. 那是一个简陋，家具破烂的房间，里面有一张床。

in a way that is withouthonour, unfair, or unacceptable

The hostages were shabbily treated when they came home. 人质回家后受到了不光彩的对待。

They treated strangers shabbily in order to feel better about themselves. 他们粗暴地对待陌生人来让自己感觉好一点。