Cách sử dụng
The word 'grievous' means something that causes great sadness, pain or suffering. It is often used to describe something very serious, severe, or harmful. For example, a grievous injury means a very serious or life-threatening injury. It is also used to describe a serious crime or offense. You can use the word 'grievous' to describe situations where something is causing a lot of harm or distress, like a grievous illness, a grievous mistake, or a grievous loss. However, it is not a word that is commonly used in everyday conversation, so it may be more appropriate to use simpler words to describe these situations, depending on the context.