Cách sử dụng
The expression "at heart" means the true nature or real personality of someone or something. It is used to describe the essential or underlying quality or characteristic of a person, thing or situation.For example, if someone is described as "shy at heart", it means that although they may appear confident on the outside, their natural disposition is actually shy. Similarly, if a situation is described as "challenging at heart", it means that it may seem easy on the surface, but in reality it's quite difficult.Overall, "at heart" is a way to describe the fundamental nature of something or someone, which can help give a deeper understanding of a situation or character.