压大单小单大双小双口诀

简介：Su Can saw that Uncle Liu was out for a walk at such an old age, and no one was with him. First, it was unsafe. If the old man fell or was hit by someone, no one would know about it and had various accidents. Second, no one would know. When talking to him, he seemed a little lonely, so Su Can thought that she should spend more time with him.