Cách sử dụng
The expression "in your seventies" means that someone is between the ages of 70 and 79. It is used to describe someone's age range. For example, if someone asks "How old is your grandmother?" and you respond "She's in her seventies," it means that your grandmother is somewhere between 70 and 79 years old. It's a simple way to describe someone's age range without giving an exact age.