In the context of a mechanical assembly, ‘part’ would refer to a component or subassembly which might have been dismounted from the whole, and ‘piece’ would refer to an arbitrary fragment, such as a thread extending from a tool. Is it a result of a straight cut

or a break?

Are the pronunciations of English easy even for native speakers of English?

This is a common thing, but not true, and is critical listening from a good listener like me. I don’t usually check on these examples or even keep to myself.

I Am in my 60’s and attended a grammar school, but have a regional (northern) accent. I can’t speak fluent German, so I’m too old for it. Does there seem to be acceptance from youths down the street, but that doesn’t make these careless pronunciations correct?