zhè / zhǒng / dài / yòng / pǐn / suī / rán / pián / yi / dàn / xiào / guǒ / bù / rú / yuán / lái / de / chǎn / pǐn

这种代用品虽然便宜，但效果不如原来的产品。

Although this substitute is cheap, it is not as effective as the original product.