Cách sử dụng
The word 'mystery' is used when something is not fully understood or known. This can be in any context, like a mystery book where the reader doesn't know who committed the crime until the end, or in real life, when something strange or unexplained happens. The word can also be used to describe a feeling of confusion or uncertainty, like when someone says "it's a mystery to me" when they don't understand something.