Cách sử dụng
The expression "like getting blood out of a stone" is used to describe a situation where something is unbelievably difficult, or when someone is trying to get something from someone who is not giving it willingly, almost like trying to get blood from a stone. For example, "Trying to get her to admit she was wrong is like getting blood from a stone." It means that it is extremely difficult to accomplish something, and it may be impossible to get what you want.