在春天或夏天的雨后,我们会在潮湿的墙角、树下和菜叶上发现慢慢爬行的蜗牛。我们楼前空地的墙角就经常可以见到,我常常捉上一只看它攀爬的样子。今天,我如往常一样又捉了一只蜗牛,把它放在一旁的石板上观察。突然,我发现蜗牛爬过的地方都有一条黏糊糊 After spring or summer rains, we find snails crawling slowly over damp corners, trees and leaves. The corner of the open space in front of us often can see, I often catch a watch it climb. Today, as usual, I caught a snail and placed it on the side of the stone to observe. Suddenly, I found that there was a slimy snail crawling over