【简答题】One day, a boy found a cocoon(茧) of a butterfly and brought it home. A few days later, the boy saw a small 35 in the cocoon. He sat and 36 for several hours as a butterfly struggled to make its body...
【简答题】One day, a boy found the cocoon(茧) of a butterfly and brought it home. A few days later, the boy saw a small 41 in the cocoon. He sat and watched for several hours as a butterfly struggled to make 42 ...