1. Pollution refers to the negative impact of the 9. 18 incident on East China. Shame refers to the unequal treatment that the 9. 18 incident brought to East China. In the author's view, these are all the filth and shame suffered by the land.

2. Expressed the author's love and praise for his hometown, his love for the motherland, his great resentment against the invaders trampling on the country and his firm belief in rebuilding a beautiful home.

(1) I love the land in my hometown (2) I will never forget my hometown.

The earth in my hometown is fragrant//in spring.