Confused? Welcome to the party. If there's one thing about Hello Kitty,
it's that she's proven adaptable and as much a study in contrasts during her
long career. 这句话的as much就是做状语吧,最后这个a study in 是不是一个固定短语?在这里怎么翻译?
However, in recent decades, cities began cleaning up rivers. The Thames is now the cleanest it has been in 150 years and has seals and the occasional whale, sometimes alive.省略掉的关系代词that怎么指代了形容词呢?这又不是非限制性关系分句。