Cách sử dụng
"Two/ten a penny" is an expression that means something is very common or easy to find. It's like saying that something is as common as pennies (small coins). For example, if someone said that a particular type of fruit is two a penny, they mean that it's very easy to find and not very valuable. Similarly, if a product is advertised as being ten a penny, it means that it is very common and not worth much.