As is subtly portrayed in the cartoon, two toursits are taking sightseeing on a small boat while discarding their picnicing leftovers casually into a lake.Unfortuantely, the lake is already littered and teamed with flowing rubbish like plastic containers, fish-bones, banana skin, watermelon rind, bottles, tins, food wrappings, and so on.And below the drawing, there is a topic which says: "after" the travel or "me" in the travel。

　　如图所示，两名游客正在一艘小船上观光，同时把野餐的剩余垃圾随意丢入湖中。不幸的是，湖中已经堆满了漂浮的塑料盒、鱼骨、香蕉皮、西瓜皮、瓶子、罐头、食品包装等各色垃圾。在图画下方，有个小标题写明：“旅程之‘余’”。