爷爷家屋后有一个蟹池，里面养了很多的蟹，大小不一，但都披着青色的盔甲，举着两把锋利无比的“宝刀”耀武扬威，活像一位大将军。爷爷告诉我，螃蟹到了春秋季节，就会脱壳。我不相信，爷爷就从蟹池中挑了一只快要脱壳的小螃蟹，放在玻璃缸中让我观察。午饭过后，小螃蟹坚硬 There is a crab pool behind my grandfather's house. There are a lot of crabs in her house, all of different sizes, but all dressed in blue armor and armed with two extremely sharp “sword knives”, they are like a general. Grandpa told me that the crab to spring and autumn, it will shelling. I do not believe, my grandfather picked a little crab from the crab pool to be shelling, let me observe in a glass jar. After lunch, the little crab is hard