图书: books (in a library or bookstore)...
弟弟: younger brother...
之前: before, prior to, ago, previously, beforehand...
没落: to decline, to wane...
大象: elephant...
上个月: last month...
相比: to compare...
只见: to see (the same thing) over and over again, to see, to one's surprise, (sth happen suddenly)...
想象: to imagine, to fancy...
轰动: to cause a sensation, to create a stir in (a place), commotion, controversy...