in a way that is careless, of poor quality, and that uses low quality materials

These clothes are very shoddily made. 这些衣服都做得粗制滥造。

Many buildings in the area are shoddily constructed. 该地区的许多建筑物都是粗制滥造的。

in a way that involves treating someone without respect, thought, or care

I've been treated very shoddily by the company. 公司给我的待遇很差。

Everyone knows he was dealt with shoddily by the party. 每个人都知道党并没有善待他。