If, seized by an intolerable boredom, he had determined to be a painter merely to break with irksome ties, it would have been comprehensible, and commonplace; but commonplace is precisely what I felt he was not.
请教老师:
1)这里前后2个commonplace,前一个是形容词,后一个是名词吗?
2)but commonplace is precisely what I felt he was not. 没看懂...what I felt he was not. ?这里怎么分析成分和句意呢?