蜗牛是用腹足爬行的,在它爬过的地方会留下黏(nian)液。科学老师说,这些黏液可以帮助它在粗糙的地方保持润滑,在光滑的地方保持稳定,这也太神奇了。蜗牛的黏液若被阳光照射之后会变得亮晶晶的,特别漂亮。有一次,我和好朋友王紫陌在打网球,突然发现一只很大很大的蜗牛爬在井盖上,一动也不动。我轻轻地拿起蜗牛的壳,它“啪”的一下就把软软的身子缩回壳里去了。吓得我赶紧把它重新放到井盖上,并和王紫陌伏下身子继续观察起来。它慢慢地伸出腹足,又缩回去一 The snail crawls with gastropods, leaving nian fluid where it crawls. Science teachers say it’s amazing how these mucus can help keep it lubricated in rough areas and stable in smooth areas. Snail mucus will become shiny and beautiful if exposed to sunlight. Once, I was playing tennis with my good friend Wang Zimu. Suddenly, I found a big, big snail crawling on the manhole cover and did not move. I gently picked up the shell of the snail, and it snapped the soft body back into the shell. Scared I quickly put it back to the manhole cover, and the king and the body to continue to observe. It slowly extended his belly enough to retract again