If a part of One's body is inside of a cast, it has a plaster cast all around it to shield it while a broken bone repairs by itself:
alone, then the report might be of curiosity principally while in the history of performance. From your Cambridge English Corpus site The kinds of speech glitches made by bilingual speakers cast
discard implies the allowing go or throwing away of something which is becoming worthless or superfluous although generally not intrinsically valueless.