家庭是以（）和共同经济为纽带而形成的亲属团体
参考答案：婚姻、血缘
人在说话时，声带在 ______．“闻其声而知其人”主要是因为不同的人声音的 ______不同．
请根据下面提示，写一篇短文。词数100字左右
In your English class, you are asked to describe the following picture and explain to your classmates how you understand it.
