Cách sử dụng
The expression "on offer" means that something is available for sale or to be taken advantage of. It is commonly used in advertising, sales, and promotions. For example, if you see an advertisement for a store that says "50% off all items on offer," it means that there is a sale going on and you can get a discount on everything that's available. Another example might be a restaurant that has a special menu for Valentine's Day "on offer," meaning that it is available for people to order on that day only. So, if you hear or see the expression "on offer," it's usually referring to something that is available for a limited time or at a special price.