B concentrating
Anything that involves (concentrating on what he is doing) is anathema to him
involves 要接名词/名词短语/名词从句
括号内是名词从句.
B concentrating
Anything that involves (concentrating on what he is doing) is anathema to him
involves 要接名词/名词短语/名词从句
括号内是名词从句.