Lagerstroemia speciosa

On the first floor, write the origin of spring water, follow the natural transition above and lead to the bottom. The second layer introduces the aperture of spring water.

Waterline and full text are connected in series, so there are two lines: swimming line and waterline run through the full text at the same time. This article is written according to two clues. One is the author's swimming sequence, which is written by grasping the characteristics of the scenery. It is a "smooth" clue; The other is the origin of springs and streams, which is a clue of "anti-" The ingenious interweaving of the two clues not only makes the context of the full text clear, but also makes the orientation and direction of things observed by the author, as well as moving clues and angles very clear.