""First generation 'biodegradable' plastic bags are not fully biodegradable, but just break into smaller pieces of plastic that don't dissolve in the soil. '"
If you want to hear my dulcet voice reading these words, you'll have to get the "plug-in."

Paraphrased sentence:

First generation "biodegradable" plastic bags don't totally break down, because they just break into smaller pieces of plastic that don't dissolve into the soil.
If you want to hear my dulcet voice reading these words, you'll have to get the "plug-in."

You try it: