“无形社会问题”的写作步骤（Directions）：
1. Describe the pictures/drawing/photo/graph.
2. Interpret its meaning./ Reasons
3. Support your view with examples.
4. Give your comments./ Give your point of view.
Interpret its meaning（完全背诵）：
Obviously/apparently/clearly/undoubtedly/evidently/manifestly/unambiguously/unequivocally, the meaning/message/purpose conveyed/indicated/suggested/implied/hinted by the picture not only show that three sons and one daughter are not willing to maintain their elder father, but, what is more/even more important, that this social problem/phenomenon/issue,