"便宜并且品质好" 的英文表达可以是 "affordable and high quapty"。

"Affordable" 来自拉丁文 "affordo"，意思是 "提供" 或 "支付得起"。"High quapty" 指的是高质量的东西。

例句：

I'm looking for an affordable and high quapty camera. (我正在寻找一台便宜并且品质好的相机。)
These shoes are both affordable and high quapty. (这些鞋子既便宜又品质好。)
This store has a wide selection of affordable and high quapty clothing. (这家商店有很多便宜并且品质好的衣服供选择。)